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WorksheetsPhysics
Total questions: 20
Worksheet time: 10mins
work done = force times ...
(a)
What is the SI unit of work?
Watt
meters per second
Joule
Newton
if a 4 N force moves an object 3 meters, what will be the work done?
16 J
7 J
8 J
12 J
How much joules is one kilojoule?
100
1000
10
0.1
How much joules is one megajoule?
1 000 000
100 000
100 000 000
10 000 000
All moving objects have .... energy.
Radiated
Thermal
Kinetic
Elastic potential
Engines use ... energy to run.
Thermal
Kinetic
Hydro
Fuel
The energy stored in the fuel is called ... energy
Chemical
Potential
Kinetic
Nuclear
A strachem rubber band and a compressed spring can both have ... energy.
Elastic Potential
Gravitational Potential
Potential
Kinetic
A stone is thrown upwards, at its highest point what energy does it have?
Potential
Kinetic
Gravitational
Chemical
work done = ...
(a)
What is the law of conservation of energy?
Energy cannot be made or destroyed, but it can change from one form to another.
Every action has an equal and opposite reaction.
If a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
Can energy be wasted?
Yes
No
Can energy be destroyed?
Yes
No
What does KE stand for?
(a)
What does PE stand for?
(a)
m x g = ...
(a)
Force is measured in ...
(a)
If a 2 kg mass is 3 m above the ground, and g is 10 N/kg, then what will the gravitational PE be?
60 J
6 J
10 J
4 J
efficiency = useful power output/ ...
(a)
