Work, Energy And Power

Question 1

Energy should be transferred to an object in order to move it.

Answer 1

Work

Question 2

Transferring energy can be in the form of force.

Answer 2

Work

Question 3

This amount of energy transferred by the force to move an object is called

Answer 3

work or work done.

Question 4

Thus, the relation between Work and Energy is.

Answer 4

direct

Question 5

Is an abstract idea related to energy.

Answer 5

Work

Question 6

When —— is done it is accompanied by a change in energy.

Answer 6

work

Question 7

When work is done by an object it ——— energy

Answer 7

loses

Question 8

when work is done on an object it ____ energy.

Answer 8

gains

Question 9

is done on an object when the force applied to it covers a distance in the direction of the applied force.

Answer 9

Work

Question 10

A force exerted on an object that causes the object to move some distance.

Answer 10

Work

Question 11

Force without moving a distance yields
_____!

Answer 11

NO WORK

Question 12

In physics, work represents a ______ in a system, caused by a force

Answer 12

measurable change

Question 13

In physics, ——- represents a measurable change in a system, caused by a force

Answer 13

work

Question 14

is done if the object you push moves a distance in the direction towards which you are pushing it

Answer 14

WORK

Question 15

is done if the force you exert does not make the object move.

Answer 15

NO WORK

Question 16

is done if the force you exert does not make the object move in the same direction as the force you exerted.

Answer 16

NO WORK

Question 17

An object _____ energy when raised from the ground and _____ energy when made to fall.

Answer 17

gains

loses

Question 18

Is work being done or not?

Mowing the lawn

Answer 18

YES

Question 19

Is work being done or not?

Weight-lifting

Answer 19

YES

Question 20

Is work being done or not?

Moving furniture up a flight of stairs

Answer 20

YES

Question 21

Is work being done or not?

Pushing against a locked door

Answer 21

No

Question 22

Is work being done or not?

Swinging a golf club

Answer 22

YES

Question 23

Work is done when the ______ applied to the object causes the obiect to have a ______ in the same direction as the force applied.

Answer 23

force (F)

distance (d)

Question 24

Work (force is _______ to distance)

Answer 24

parallel

Question 25

The unit joule (J) is named after the English Physicist

Answer 25

James Prescott Joule.

Question 26

This is also a unit of energy.

Answer 26

Joule

Question 27

One (1) Joule is equal to the work done or energy expended in applying a force of one Newton through a ___

Answer 27

distance of one meter.

Question 28

is also a means of transferring energy from one object to another.

Answer 28

Work

Question 29

The one doing the work _____ energy and the object on which work is done ____ energy.

Answer 29

loses

gains

Question 30

does things for us.

Answer 30

Energy

Question 31

is the ability to do work.

Answer 31

Energy

Question 32

Can be divided into several main tasks we easily recognize

Answer 32

1.)
- Energy produces light.
• Energy produces heat.
• Energy produces motion.

2.)
• Energy produces sound.
• Energy produces growth.
• Energy powers technology

Question 33

Types of energy

Answer 33

Kinetic energy
Potential energy

Question 34

comes from the Greek word kinetikos which means moving.

Answer 34

Kinetic energy

Question 35

Kinetic energy comes from the Greek word comes ——— which means moving.

Answer 35

kinetikos

Question 36

Kinetic energy comes from the Greek word kinetikos which means.

Answer 36

moving

Question 37

Layman’s term may mean strength or authority

Answer 37

Power

Question 38

Rate is doing work

Answer 38

Power