Motion
Forces and Motion
Conservation of Energy
Waves
Light and the Electromagnetic Spectrum
100

This is the formula for calculating speed

Speed = Distance ÷ Time

100

This is the unit of force

Newton (N)

100

This is the unit of energy

Joule (J)

100

This is the unit of frequency

Hertz (Hz)

100

This is the part of the electromagnetic spectrum that humans can see

Visible Light

200

This is the term for the speed of an object in a given direction

Velocity
200

This is the force that pulls objects toward the centre of the Earth

Gravity

200

This is the type of energy stored in food or fuel

Chemical Energy

200

This is the type of wave where particles vibrate parallel to the direction of energy transfer

Longitudinal Wave

200

This is the type of electromagnetic wave used in satellite communications

Radio Waves

300

This is the acceleration of an object that increases its velocity from 10 m/s to 30 m/s in 5 seconds

4 m/s²

300

This is the resultant force when two forces of 10 N and 15 N act in opposite directions

5N

300

This is the energy transferred when a 2 kg object is lifted 5 meters vertically

100J (Use PE = mgh, g = 10 m/s²)

300

This is the wavelength of a wave with a frequency of 50 Hz and a speed of 100 m/s

2 metres

300

This is the speed of light in a vacuum

3.00 x 10 m/s

400

This is the term for the straight-line distance between an object’s starting and ending points

Displacement

400

This is Newton’s Third Law of Motion

For every action, there is an equal and opposite reaction

400

This is the principle that states energy cannot be created or destroyed

The Law of Conservation of Energy

400

This is the term for the maximum displacement of a wave from its rest position

Amplitude

400

This is the process by which light bends when it passes from one medium to another

Refraction

500

This is the shape of a distance-time graph for an object moving at constant speed

Straight Line

500

This is the force needed to accelerate a 5 kg object at 3 m/s²

15N

500

This is the efficiency of a device that outputs 80 J of useful energy from 200 J of input energy

40%

500

This is the speed of a wave with a wavelength of 10 meters and a frequency of 20 Hz

200 m/s

500

This is the order of the electromagnetic spectrum from longest to shortest wavelength

Radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, gamma rays?

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