S3 Beyond the Visible

Inductiveload, NASA [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons

This Physics Block covers Beyond the Visible after covering light. Attached is the outcomes that you should cover in your course.

Some people are unfortunate and have colour deficiency. This is usually a genetic condition.

The different types are protanomaly, which is a reduced sensitivity to red light, deuteranomaly which is a reduced sensitivity to green light (the most common form of colour blindness) and tritanomaly which is a reduced sensitivity to blue light (extremely rare).

Reflection for S3

In this task I ask you to research colour deficiency and complete the template.

Colour Deficiency Class Task, you might want to add a section about careers not open for those with colour deficiency

Revision Mind Map

This is part of a series of brilliant Mind Maps made by Miss Milner for the N5 Physics Course. You ought to be able to fill it all in!

Uses of EM Waves

One of the uses of UV radiation is a security feature of bank notes. Shining UV radiation on to the bank note causes them to fluoresce (the atoms in the material take in the UV radiation and re-emits it as light which we can see)

Look at how advanced the fluorescing shapes and colours are.

Experiments- Uses of UV to check the authenticity of bank notes

IR cameras are used by the police to track for criminals at night but they are also really useful to the fire brigade at finding people in smoked filled buildings, you can’t hide behind a bin bag and even a hand print can leave a “heat print”.

You can’t hide in a bin bag if someone has the IR camera on you!

Did you know you can be on the radio? Not very musical but it can drown out Radio Scotland.

Do try this at home, use cheese marshmallows or chocolate but you need to take the turntable out and DON’T put things on a metal tray!

Waves S3 Homework Book

The electromagnetic (em) spectrum is a collection of transverse waves that all travel at the same speed in air, the speed of light, 300 000 000 m/s. (equivalent to 7.5 times round the Earth every second)

One of the waves is VISIBLE LIGHT

A=amplitude λ = wavelength

Others are RADIO & TV, MICROWAVE.

The others are INFRA-RED, ULTRA VIOLET, X-RAYS, GAMMA WAVES.

The only difference between each of these waves is their wavelength or frequency. They all fit the formula

Speed= frequency × wavelength

v=f λ

The order is important and to remember it use the following rhyme!

Randy                  Radio & TV

Monkeys              Microwaves

Invade                 Infrared

Venezuela           Visible

Using                   Ultraviolet

Xylophone           X-rays

Gunships             Gamma

Period, T, is the time for one wave to pass a point and is measured in seconds.

Frequency, f is the number of waves being produced or passing a point per second. Frequency is measured in Hertz (Hz)

Here are lots of resources for you to check and practice. My utmost apologies if I have not credited people for sending this material. As soon as I know who you are I will thank you personally.

REVISION GAMES FOR WAVES

https://wordwall.net/resource/9421925

S3 Renewables and Covid Recovery

Thinking Skills

Variables

Variables Worksheet

Keith Johnson has written an amazing book which is being updated regularly. You can access free powerpoints here. I really hope that he doesn’t mind me reproducing one of them here, but pop along there for a whole list of useful powerpoints for all your classes, or for students to brush up on lots of Scientific skills.

www.physics4u.co.uk

Referencing

Signature

Mrs Physics Dec 2021

Scientific Posters

Up until now when you’ve done a poster teachers have probably encouraged you to write very little, draw something eye-catching and maybe have a slogan. There is another kid of poster which is a scientific poster and that is very different.

In a scientific poster you need to get people to understand your

  • Title
  • Aim
  • Method
  • Findings
  • Conclusions
  • Research
  • Applications

This means that your poster will have writing and often quite a lot, but if you can put the information is a graph or photo- as they say a picture tells a thousand words.

Here are some scientific posters from the kind Science Community at Scottish Universities and also some Science on Stage Posters made by teachers about their work in schools, you might recognise some of them.

Don’t worry if you don’t understand all the content, you are using them as an idea of layout and what you need to add in.

Template for your Scientific Poster

Please use the correct template for your class. You can change any part of the slide, except the header.

Select#
Signature

Mrs Physics,

January 2022

BGE Transport Materials


Here is the start of the TRANSPORT materials for lower school. You could choose to use this as an applications based upper school science course.

I have uploaded the powerpoint presentations and the corresponding pdf versions. Please note most of these files are very big! The file we are working on is highlighted in red.

       pdf                            powerpoint
 Transport INTRO                   Transport INTRO             

Transport IN GROUPS            Transport IN GROUPS

 Speed & Velocity             	   Transport Speed & Velocity

This is broken down into 2 parts   Speed [21]
speed and velocity		   Velocity [21]

Transport Acceleration		   Transport Acceleration

Transport Forces    		   Transport Forces

Transport Graphs 		   Transport Graphs

Tart Ma Cart If you wish to have a copy of this document in powerpoint please contact Mrs Physics.

Below are a set of resources for use with various parts of the Road Safety Topic. All these documents are currently in word format. Eventually I will upload pdf copies too. They are not necessarily in order- sorry.

We mentioned using the calculator to convert hours and minutes to decimals. You can find the link here. Using your calculator

REVISION OF TRANSPORT MATERIALS A word document revising part 1

REVISION OF TRANSPORT MATERIALS A pdf version of the word document above

REVISION TRANSPORT ANSWERS The answers to the word document above

REVISION OF TRANSPORT ANSWERS  A pdf version of the word document above.

holiday competition instructions Pupils find their average speed for a journey they made during the holidays. Issue prior to the holidays

Finding the Area Here is an exercise for students who might find it difficult to find the area under a v-t graph

Casualties grouptask This task might be a good starter for National 5 Assignments

Physics of Road signs Linking Physics with Road Signs, to introduce how Road Safety is all about Physics. This makes a good starter homework. The answers aren’t fixed and can be a great discussion opportunity.

MEASURING REACTION TIME Some ideas on how to find the reaction time of students, including some great websites. If you have a FIFEX reaction timer they make great practicals too.

Here are three links to reaction time games

sheep reaction.swf    read-your-signals/game-reaction-time

mathsisfun reaction-time

This excel spreadsheet will allow you to find your reaction times from a dropping ruler. Just enter the drop distances in the yellow boxes and excel does the rest. Don’t forget to write down the values it gives you.

Time calculator


Speed TASK Mat 1 Using playmats find the speed of a car.

Speed TASK Mat 2 A different type of playmat.

Stopping Distance or open as a pdf Stopping-Distance

The Post Office van An example of speed distance time, and also can be used for displacement and velocity.

vdt problems A dominoes game to practice speed, distance and time. Use as a homework

vdt problem answers The answers to the dominoes above.

Displacement This sheet has been extended as shown below.

Finding Velocity 2017   Velocity sheet 2017

The Post van displacement

For additional practise try the link to the BBC Bitesize website and try the revision, video and test

http://www.bbc.co.uk/bitesize/revision

Why your tyres are important in Road Safety

Homework sheet- do half an hour

speed distance time a problem sheet with answer for you to practise.

Stopping Distance or as a pdf  Stopping-Distance

speed A road safety published book on speed

TASK finding average speed and velocity

car_crashes A road safety book on car crashes.

Momentum basics

Causes of Road Accidents. Research the reasons why the number of road accidents Causes of Road Traffic Accidents

Glossary

Word Definition Unit
Acceleration Is the change in speed in one second. . An unbalanced force causes acceleration or deceleration. Usually this is measured in m/s2 but can be measured in mph/s
Air Resistance It is the force that slows things down when they are moving through air.  
At rest we use this term to mean not moving. We can also say the object is stationary.  
Average speed  found by timing how long it takes a vehicle to travel a known distance. Distance travelled per second. measured in m/s
Balanced forces When two equal forces are acting on an object in opposite directions and cancel each other out  
Chemical energy A store of energy in the form of a chemical, eg fuel for cars and food  
construction how something is made  
Deceleration The decrease in speed in one second. Something slowing down. This should be represented by NEGATIVE ACCELERATION metres per second squared (m/s2) or ONLY in Transport mph/s
Displacement how far you have travelled in a straight line. We would say “as the crow flies” It is measured in metres or miles but must also have a direction. eg 10m north, 20 miles to the left.
Distance how far you have travelled. It is another name for length.  It is measured in metres or during our road safety topic miles.
Dynamics The mechanics part dealing with Forces  
Effects of a Force A force can change an objects speed, shape and direction.  
Energy Can be changed from one form into another form but cannot be created or destroyed  
Force A push or a pull. Has the symbol F and is measured in Newtons (N). Newton
Force of gravity Another name for weight Newton
Friction Is a force that can oppose the motion of a body. Newton
Gravitational field strength It is the force of gravity or weight acting on every kilogram. The weight per unit mass
Newton’s per kilogram
Gravitational potential energy The work done against gravity Joule
Gravity A phenomena that causes objects to fall down, BE CAREFUL HOW YOU USE THIS TERM and where possible try to avoid it.  
Heat energy The energy produced when objects are slowed down by friction. Joule
Heat energy The internal energy of an object. Heat may be defined as energy in transit from a high temperature object to a lower temperature object. Joule
Hookes Law This law states that providing you don’t overstretch a spring the stretch or extension of a spring will double if the force on the spring is doubled.  
Instantaneous speed is the speed at which you are travelling over a very short distance. It is measured in metres per second or miles per hour.
Instantaneous speed The speed at one particular point in time (and can be very different from the average speed). It is the same as average speed if journey time is very small or if the object is traveling at a constant speed. m/s
Kinematics Mechanics dealing with motion, speed, acceleration etc  
Kinetic energy Symbol Ek Is the energy an object has because it is moving. The higher the speed the greater will be it’s kinetic energy Joule
maintenance the care or upkeep of a mechanical object  
Mass The amount of matter in an object and is measured in kilograms. kilogram
Mechanics The branch of Physics dealing with motion (how things move).  
Momentum The product of mass and velocity. A quantity that only moving objects possess.  
Newton balance Is used to measure force (a spring balance)  
Newtons First Law States that an object remains at rest or continues in the same direction at the same speed, unless there is an unbalanced force acting  
Newtons Second Law States that F = m x a  
Potential energy A store of energy Joule
Reaction Force A force pushing in the opposite direction to the action force eg, a gun fires a bullet, the gun places as action force on the bullet but the bullet places a REACTION force on the gun. Newton
Reaction Time The time it takes our brain to process information that something has changed, or a danger has occurred. second
Resultant force A force can change an objects speed, shape and direction. Newton
Scalar A quantity that is fully described by a value and unit  
Speed how far you travel every second. In the lab our distances are measured in metres and our time is measured in seconds so our units of speed would be metres per second.
Speed is the distance travelled in unit time. In road safety we look at miles travelled every hour or miles per hour.
Stationary we use this term to mean not moving. We can also say the object is at rest.  
Time how long your journey took. It is measured in seconds or during our road safety topic hours.
Uniform Speed When your speed is uniform we mean that your speed isn’t changing.   It remains constant.  
Upthrust It is the force that pushes things up in water.  
Vector A quantity that is fully described by a value, a direction and unit.  
Vehicle A thing used for transporting people or goods, esp. on land, such as a car, truck, or cart.  
Weight It is the force of gravity pulling an object down and is measured in Newtons  
Work done Is a measure of the energy transferred when a force moves through a distance. Work done = force x distance in the direction of force  

Stopping Dist answers

Be safe!

Safety saves sickness, suffering, sadness. ~Safety saying, circa early 1900s

Practice “Safety First” to-day: It may be too late to-morrow. ~Safety saying, circa early 1900s

Do not depend on others for safety — Help yourself. ~Safety saying, circa early 1900s

Every accident is a notice that something is wrong with men, methods, or material — investigate — then act. ~Safety saying, circa early 1900s

https://commons.wikimedia.org/wiki/File:UK_Roundabout_8_Cars.gif#/media/File:UK_Roundabout_8_Cars.gif

Signature


S2 & S3

The power point presentation above is what is currently in use in the S3 lesson.