# Physics AQA PAPER 2 FINAL EXAM 1

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• Created by: IJM22
• Created on: 08-06-19 16:46
What does it mean if there is greater force?
Then there is a greater acceleration
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What does it mean if the mass is larger?
The acceleration will be smaller
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What is the equation to calculate the force need to accelerate an object?
Force (N) = Mass (kg) × Acceleration (m/s2)
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Calculate the force needed to accelerate an object with a mass of 5 kg by 4 m/s2
1. Force (N) = Mass (kg) × Acceleration (m/s2) 2. Force = 5 kg × 4 m/s2 = 20 N
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Give an example of transverse waves?
Ripples on the surface of water
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Give an example of lonitudinal waves?
Sound waves
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What are the two types of waves?
Transverse and longitudinal waves
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What is a key factor about waves?
All waves transfer energy from one place to another
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What do ripples transfer?
Kinetic energy
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What do sound waves transfer?
Sound energy
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Define amplitude?
The furthest point the wave vibrates from the undisturbed position
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Define wavelength?
The distance from a point on one wave to the equivalent point on the adjacent wave
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Define frequency?
Number of waves passing a point each second
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What is the unit of frequency?
Hertz
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What does 1 Hz equal to?
1 wave per second
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Define period ?
The time in seconds for one wave to pass a point
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What is the equation to work out period?
Period = 1/frequency/(Hz)
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Equation for wave speed?
V (wave speed m/s) = f (frequency Hz) × λ (m)
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A wave has a frequency of 165 Hz and a wavelength of 2m. Calculate the speed of the wave
1. V ( m/s) = f Hz) × λ (m) 2. V = 165 × 2 = 330m/s
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Name an example of an electromagnetic wave?
Light
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What are electromagnetic waves?
They are transverse waves - they transfer energy from the source of the waves to an absorber
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Why is a microwave a good example of an electromagnetic wave?
As it transfers energy from the source (the oven) to the absorber (food)
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Why are light waves a good example of an electromagnetic wave?
As light waves transfer energy from the source (the Sun) to the absorber (solar pannels on the spacecraft)
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What happens if you pass white light through a prism?
It splits into a spectrum
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On the red end of the spectrum, what frequency and wavelength does it have?
A lower frequency and a longer wavelength
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On the violet end of the spectrum, what frequency and wavelength does it have?
The waves have a higher frequency and a shorter wavelength
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## Other cards in this set

### Card 2

#### Front

What does it mean if the mass is larger?

#### Back

The acceleration will be smaller

### Card 3

#### Front

What is the equation to calculate the force need to accelerate an object?

#### Back ### Card 4

#### Front

Calculate the force needed to accelerate an object with a mass of 5 kg by 4 m/s2

#### Back ### Card 5

#### Front

Give an example of transverse waves?

#### Back 