IMSU Physics 2014/2015 Past Questions

Practice each question, then open it to see the full details.

If you push an object with twice the work input for twice the time, your power input is

A.twice
B.four times as much
C.the same amount as for half the work in half the time
D.once

A job is done slowly, while an identical job is done quickly. Both jobs require the same amount of work, but different amounts of

A.energy
B.power
C.both of these
D.none of these

If you do work on an object in half the usual time, your power output is:

A.half the usual power output
B.the usual power output
C.twice the usual power output
D.five time the usual power

Exert 1N for a distance of 1m in 1s and you deliver a power of:

A.1W.
B.2W.
C.1/3W
D.3W.

Do 100J of work in 50s and your power output is

A.1/4W
B.1/2W.
C.2W
D.4W.

When an object is raised above the ground it gains a certain amount of potential energy. If the same object is raised twice as high, it gains:

A.four times as much potential energy
B.twice as much potential energy
C.neither of these
D.all of above

When an object is lifted 10 meters, it gains a certain amount of potential energy. If the same object is lifted 20 meters, its potential energy gain is

A.less.
B.the same
C.twice as much
D.four times as much.