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Year 9 Homework - 3rd February
By Kieran Amery
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Last updated over 4 years ago
15 questions
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Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Question 9
9.
Describe the energy transfer that occurs when a ball is dropped from a height.
Question 10
10.
Describe the energy transfer that occurs when a car applies it's breaks and the breaks then warm up.
Question 11
11.
Describe the energy transfer that occurs when a car applies it's breaks and the breaks then warm up.
Question 12
12.
Describe the energy transfer that occurs when a mobile phone is charged.
Question 13
13.
A ball has 400J of gravitaional potential energy. If no energy is dissipated how much energy is usefully transferred to kinetic energy?
Question 14
14.
An electric car has 30J of chemical energy. 12J of energy is dissipated as sound, how much energy is usefully transferred to kinetic energy?
Question 15
15.
A kettle has 200J of thermal energy. 25J of energy is dissipated as sound, how much energy is usefully transferred to thermal energy?
Thermal energy is stored in
high up objects
moving objects
hot objects
Kinetic energy is stored in
hot objects
high up objects
moving objects
Gravitational potential energy is stored in
high up objects
moving objects
hot objects
Which of the following is a chemical energy store?
A hot frying pan
The nucleus of an atom
A falling football
A battery
Which of the following is a nuclear energy store?
A battery
The nucleus of an atom
A falling football
A hot frying pan
Which of the following is a store of elastic potneital energy?
A bungee jumper before they jump
A falling football
A hot frying pan
A stretched spring
Which of the following is a mechanical energy transfer?
an alectrical current flowing
a candle burning
a light shining
an object falling
In which of the following is the energy transfer done by radiation?
a candle burning
a light shining
an object falling
an alectrical current flowing