WorksheetsTHOA Energy Revision Quiz
Total questions: 14
Worksheet time: 17mins
Name
Class
Date
1.
Which form of energy does a car start with?
a)
Electrical
b)
Chemical
c)
Kinetic
d)
Thermal
2.
A light bulb takes in 25J of electrical energy and gives out 10J of light energy. How efficient is it?
a)
2.5%
b)
25%
c)
40%
d)
250%
3.
"Energy cannot be created or destroyed." This is...
a)
Conservation of momentum
b)
Conservation of mass
c)
Conservation law
d)
Conservation of energy
4.
The energy required to raise 1kg of a substance by 1°C is called its...
a)
Specific heat capacity
b)
Specific latent heat
c)
Latent heat capacity
d)
Specific heat of fusion
5.
How much energy would it take to boil 500g of water that starts at 21°C? Water has a specific heat capacity of 4200J/Kg°C.
a)
165,900,000J
b)
16,590,000J
c)
1,659,000J
d)
165,900J
6.
That boiled water is then left to cool. Assuming there is still 500g, what temperature does it finish at if it loses 190,000J of energy? The specific heat capacity of water is 4200J/Kg°C.
a)
90°C
b)
10°C
c)
100°C
d)
0°C
7.
How much kinetic energy does a car of 750kg have if it travels at 30m/s?
a)
337,500J
b)
11,250J
c)
675,000J
d)
1,350,000J
8.
A child stands on a wall 3m high. The child has a gravitational potential energy of 1200J. What is their mass?
a)
400Kg
b)
4Kg
c)
40Kg
d)
40N
9.
That same, 40kg child jumps off the 3m wall. Calculate the speed that the child gets to when they hit the floor. Think about energy transfers.
a)
60m/s
b)
30m/s
c)
5.5m/s
d)
7.75m/s
10.
What is the equation for elastic potential energy?
a)
E = ½ Kx2
b)
E = Kx2
c)
E = ½ K/x2
d)
K = ½ E x2
11.
Wayne and Waynetta have a bet. Wayne thinks he can carry their new TV to their 2nd story flat in 1 minute. Waynetta thinks it will take him 3 minutes. Which time would take more work?
a)
1 minute
b)
3 minutes
c)
Both the same
12.
Which of these are not renewable energy resources?
a)
Fossil fuels
b)
Solar
c)
Wind
d)
Geothermal
13.
Why do people stay connected to the National Grid if they have solar panels?
a)
In case the Sun isn't hitting their panels enough.
b)
So they can steal electricity.
c)
So they can store electricity.
d)
Because they have to.
14.
Using rapeseed oil as a fuel is good because the new plants grown take in the carbon dioxide produced by combustion. This means it is...
a)
Carbon rich
b)
Carbon cycling
c)
Carbon neutral
d)
Carbon positive
100 %
