Work, Energy and Power - JSS2 Basic science Past Questions and Answers - page 1
What is work?
The ability to do work
The rate of doing work
When a force moves an object over a distance
The energy of motion
Share this question
Which of the following is an example of potential energy?
A moving car
A stretched rubber band
A flying bird
A spinning top
Share this question
What is power?
The ability to do work
The rate of doing work
The energy of motion
The stored energy in an object
Share this question
Which equation represents work?
W = F + d
W = F × d
W = F ÷ d
W = F - d
Share this question
When a force is applied to an object but it does not move, what happens?
Work is done
No work is done
Energy is transferred
Potential energy increases
Share this question
Which form of energy is associated with motion?
Potential energy
Kinetic energy
Thermal energy
Chemical energy
Share this question
What does the term "power" measure?
Ability to lift heavy objects
Rate of doing work
Stored energy in an object
Energy conversion
Share this question
If you exert a force on an object but it does not move, what is the work done?
Zero
Positive
Negative
Infinite
Share this question
Which of the following is an example of kinetic energy?
A stretched spring
Water stored in a dam
A moving car
A battery-powered flashlight
Share this question
What is the formula for calculating power?
P = W × t
P = W + t
P = W ÷ t
P = W - t
Share this question