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WorksheetsYr 8 Physics Revision
Total questions: 20
Worksheet time: 15mins
The turkey is being cooked in the oven by _____ Energy.
Thermal
Solar
Electrical
None
What type of energy is stored in the bonds between atoms
Electrical energy
Thermal energy
Kinetic energy
Chemical energy
At which point is potential energy the greatest?
W
X
Y
Z
What kind of energy is this?
Gravitational potential energy
Elastic potential energy
Potential energy
None of the above
Which type of energy has to do with height above the ground?
Kinetic
Gravitational
Elastic
Chemical
Dissipated
Fill in the blank.
The higher up an object is, the _________ gravitational energy it has
More
Less
Fill in the blank.
The slower an object is moving, the _________ kinetic energy it has
More
Less
As an object falls towards the ground, its _______ energy INCREASES
Gravitational
Kinetic
Which two points have the same potential energy?
U & V
S & T
T & X
S & X
Which position has the highest potential energy?
1
2
4
6
What is the correct unit for energy?
meters (m)
kilogram meters per second (kg m/s)
Newtons (N)
Joules (J)
What does conservation of energy mean?
Total energy increases
Total energy decreases
Total energy in the universe stays the same
What is the equation for calculating gravitational potential energy
mv
1/2 mv^2
mgh
Ft
If the marble had a mass of 0.3kg and the hill was 2.3 m tall, how much potential energy did it have at the top of the ramp?
2.3 J
0.23 J
6.9 J
5.2 J
If the 0.3 kg marble was moving at 6 m/s at the bottom of the ramp, how much kinetic energy did the marble have?
5.4 J
1.8 J
3 J
6 J
What is the equation for calculating kinetic energy?
mv
1/2 mv^2
mgh
Ft
If the 1.2 kg basketball rolls at 3 m/s, what is it's kinetic energy? (KE = 1/2mv2)
2.7
5.4
3.6
9
