Work, energy and power

Work, energy and power

Assessment

Assessment

Created by

Boo Khoo

Physics

12th Grade

24 plays

Hard

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21 questions

Show answers

1.

Multiple Choice

20 sec

1 pt

Define work done

product of force and distance moved

product of force and displacement

force x perpendicular distance from pivot

ratio of force and distance moved in direction of force

2.

Multiple Choice

20 sec

1 pt

What is the unit of work?

N m-1

kg m s¯²

kg m² s¯²

kg m² s¯³

3.

Multiple Choice

20 sec

1 pt

What is potential energy?

energy stored due to height above the surface of Earth

stored energy available to do work

energy a body has due to its motion

energy stored due to deformation

4.

Multiple Choice

30 sec

1 pt

Distinguish between gravitational potential energy (GPE) and elastic potential energy (EPE).


I. GPE the energy stored due to height of object above the surface of Earth

II. EPE is due to deformation of object.

III. Both are stored energy available to do work

I, II, III

I and II

I and III

III only

5.

Multiple Choice

20 sec

1 pt

Media Image

A

B

C

D

6.

Multiple Choice

30 sec

1 pt

Media Image

404 μJ

404 mJ

404 J

404 kJ

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