Free Printable 5 work half day questions after reading

1.

In order for work to be done on an object, you just need a force applied to the object. It does not have to move.

a)

True

b)

False

2.

What is the equation for work?

a)

$Fd\cos\theta$

b)

$\frac{W}{t}$

c)

$F\cos\theta$

d)

$\frac{W\cos\theta}{t}$

3.

What is the SI unit of work?

a)

J

b)

W

c)

N

d)

kWh

e)

P

4.

The SI unit of mass is ____.

a)

g

b)

kg

c)

N

d)

m

5.

If you lift an object up, are you doing work on it?

a)

Yes

b)

No

6.

If you carry an object horizontally at a constant speed, are you doing work on it?

a)

Yes

b)

No

7.

If an object is moving right and you are pushing left on it, are you doing work on it?

a)

Yes

b)

No

8.

If you are exerting a force to the right on a box moving to the right, what is the angle between your force and the displacement in degrees?

a)

0

b)

90

c)

180

d)

-180

9.

Work cannot be negative.

a)

True

b)

False

10.

Work is negative when the angle between the force and displacement is (a) .

Choose from the below words

180°

90°

0°

negative

360°

2π

11.

How do you find the opp side given H and $\theta$ ?

$\sin\theta=\frac{opp}{H}\ \ \ \ \cos\theta=\frac{adj}{H}\ \ \ \ \ \tan\theta=\frac{opp}{adj}$

a)

$H\sin\theta$

b)

$H\cos\theta$

c)

$H\tan\theta$

d)

$\frac{\sin\theta}{H}$

e)

$\frac{\cos\theta}{H}$

12.

How do you find the adj side given H and $\theta$ ?

$\sin\theta=\frac{opp}{H}\ \ \ \ \cos\theta=\frac{adj}{H}\ \ \ \ \ \tan\theta=\frac{opp}{adj}$

a)

$H\sin\theta$

b)

$H\cos\theta$

c)

$H\tan\theta$

d)

$\frac{\sin\theta}{H}$

e)

$\frac{\cos\theta}{H}$

13.

Which of the following is true about work done on an object?

a)

Work is always positive.

b)

Work is zero if the force is perpendicular to displacement.

c)

Work is negative if the force is in the direction of displacement.

d)

Work is independent of the angle between force and displacement.

14.

If a horizonal force of 17 N was applied to move a crate 4 m, how much work was done on the crate? (a)

Choose from the below words

272 N

68 J

68 N

272 J

58 J

48 J

58 N

15.

If you push an object and it doesn't move, how much work is done on the object?

a)

Positive work

b)

Negative work

c)

Zero work

d)

Infinite work

16.

What is the x-component of the vector given in the diagram?

a)

77N

b)

92N

c)

120N

d)

60N

17.

What is the y-component of the vector given in the diagram?

a)

77N

b)

92N

c)

120N

d)

60N

18.

Challenge: As the angle of the incline increases, what happens to the normal force?

a)

The normal force increases

b)

The normal force decreases

c)

The normal force is not affected by the incline

d)

The normal force is only dependent on the force due to gravity

5 work half day questions after reading

Total questions: 18

Worksheet time: 27mins

Similar Resources on Wayground