Free Printable work done and power

1.

Work done = Force x _________

a)

a. distance

b)

b. acceleration

c)

c. velocity

d)

d. speed

2.

The SI Unit for Power

a)

Newton (N)

b)

Joule (J)

c)

Second (s)

d)

Watt (W)

3.

The SI Unit for Time

a)

Newton (N)

b)

Joule (J)

c)

Second (s)

d)

Watt (W)

4.

The SI Unit for Force

a)

Newton (N)

b)

Joule (J)

c)

Second (s)

d)

Watt (W)

5.

The SI Unit for Work

a)

Newton (N)

b)

Joule (J)

c)

Second (s)

d)

Watt (W)

6.

The SI Unit for Mass?

a)

Kilogram (Kg)

b)

Newton (N)

c)

Joule (J)

d)

Watt (W)

7.

Force multiplied by distance equals...

a)

work

b)

power

8.

The unit of power is the...

a)

work

b)

watt

9.

The unit of work is the ...

a)

joule

b)

force

10.

Work divided by time equals...

a)

energy

b)

power

11.

What is the unit of measurement for power?

a)

watts

b)

newtons

c)

meters

d)

joules

12.

What is the rate at which work is done?

a)

force

b)

work

c)

motion

d)

power

13.

What is the unit of measurement for work?

a)

newtons

b)

meters

c)

watts

d)

joules

14.

Work is measured in the same units as:

a)

Force

b)

Momentum

c)

Mass

d)

Energy

15.

A force exerted over a distance to move an object is ______________________.

a)

power

b)

work

c)

momentum

d)

Watt

16.

What is the unit for force?

a)

N/kg

b)

Nm

c)

N

d)

J

17.

What is the formula for power?

a)

Power = Energy(J) / time(s)

b)

Power = Work done(J) / time(min)

c)

Power = Work done(N) / time(s)

d)

Power = Energy(N) / time(min)

18.

The unit used to measure work is the

a)

Watt

b)

Newton

c)

Joule

d)

meter

19.

How much work is produced when 350 N is used to move a car 5 m?

a)

70 J

b)

1750 J

c)

355 J

d)

175 J

20.

What is the definition for power?

a)

How fast you can move

b)

How hard you can push

c)

The amount of energy transferred per second

d)

The amount of energy every minute

21.

What is the equation for GPE?

a)

m x g x h

b)

m x v

c)

f x d

d)

m x h

22.

Which one is NOT a type of energy?

a)

Kinetic

b)

GPE

c)

Magnetic

d)

Electrical

23.

Which of the following is the correct formula for efficiency?

a)

$\frac{useful\ energy\ input}{total\ energy\ output}\times100\%$

b)

$\frac{useful\ energy\ output}{total\ energy\ input}\times100\%$

c)

$\frac{total\ energy\ output}{useful\ energy\ input}\times100\%$

d)

$\frac{total\ energy\ input}{useful\ energy\ output}\times100\%$

24.

Which of the following formula for work done and power are correct?

W: Work Done

F: Force

d: distance moved in direction of force

P: Power

t: time taken

a)

$W\ =\ \frac{F}{d}$

b)

$W\ =\ F\ \times d$

c)

$P\ =\ \frac{W}{t}$

d)

$P\ =\ W\ \times t$

25.

What is the SI unit of Work Done and Power?

a)

Work done: W

Power :N

b)

Work done: N

Power :W

c)

Work done: W

Power :J

d)

Work done: J

Power :W

26.

Power is defined as the

a)

product of work done and time

b)

sum of work done and time

c)

work done in some time

d)

work done per unit time

27.

Which of the following is true about work done by a force?

a)

SI unit is in J

b)

SI unit is in W

c)

Work done > Energy transferred

d)

Work done = Energy transferred

28.

Work done by a constant force on an object is the ____ of the force and the distance moved by the object in the ____ of the force.

a)

sum, same direction

b)

sum, different direction

c)

product, same direction

d)

product, different direction

29.

True or false: when the distance an object moves is zero the work done on the object is also zero.

a)

True

b)

False

30.

How much work is being done with 200 N of force over 426 meters?

a)

85,200 J

b)

45,620 J

c)

90,480 J

d)

62,329 J

31.

1. What is the unit of work?

a)

Watt

b)

Newton

c)

Joule

d)

Calorie

32.

Explain the concept of horsepower in relation to power.

a)

Horsepower is a unit of measurement for power, equivalent to 550 foot-pounds per second or 745.7 watts.

b)

Horsepower is only used in the automotive industry.

c)

Horsepower is equivalent to 1000 watts.

d)

Horsepower is a unit of measurement for speed, not power.

33.

Calculate the power if the work done is 500J in 10 seconds.

a)

250 Watts

b)

100 Watts

c)

75 Watts

d)

50 Watts

34.

How is power related to work done and time?

a)

Power is inversely proportional to work done and time.

b)

Power is equal to work done divided by the square of time.

c)

Power is unrelated to work done and time.

d)

Power is related to work done and time through the formula P = W / t.

35.

Differentiate between work done and power.

a)

Work done is the total energy transferred, whereas power is the rate of energy transfer.

b)

Work done is the rate of energy transfer, whereas power is the total energy transferred.

c)

Work done is the speed of an object, whereas power is the acceleration.

d)

Work done is the force applied, whereas power is the distance traveled.

36.

Explain the concept of power.

a)

Power is the ability to influence or control others, resources, or events.

b)

Power is the ability to generate electricity

c)

Power is the ability to cook food

d)

Power is the ability to run fast

37.

What is the formula to calculate power?

a)

Power = Work x Time

b)

Power = Work / Time

c)

Power = Work + Time

d)

Power = Work - Time

38.

Explain the concept of power.

a)

Power is the ability to influence or control others, resources, or events.

b)

Power is the ability to generate electricity

c)

Power is the ability to cook food

d)

Power is the ability to run fast

39.

How is work done related to force and displacement?

a)

Work done = Force x Displacement x cos(theta)

b)

Work done = Force / Displacement

c)

Work done = Force + Displacement

d)

Work done = Force x Displacement x sin(theta)

40.

What are the SI units of work done?

a)

newtons

b)

watts

c)

meters

d)

joules (J)

41.

Define work done in physics.

a)

Work done is the product of mass and acceleration.

b)

Work done is the result of time and velocity.

c)

Work done is the outcome of energy and power.

d)

Work done is the product of force and displacement in the direction of the force.

42.

What is the formula to calculate work done?

a)

Work = Force x Distance

b)

Work = Energy x Power

c)

Work = Velocity x Time

d)

Work = Mass x Acceleration

43.

Power is defined as the quantity that measures the rate at which _____ is done or energy is transformed.

a)

energy

b)

time

c)

work

d)

elasticity

44.

How much time is needed to produce 720 Joules of work if 90 watts of power is used?

a)

0.125 s

b)

8 s

c)

64800 s

d)

80 s

45.

P=25 watts
W=5000 Joules
t=???

a)

200 sec

b)

0.0005 s

c)

125000 s

d)

125 s

46.

Which of these items is not part of the law of conservation of energy?

a)

energy cannot be created

b)

energy cannot be destroyed

c)

energy can be transferred between forms

d)

energy is destroyed by friction

47.

In which of these cases is work being done?

a)

A student sleeps

b)

A student pushes a locked door that does not move

c)

a student carries his chair into another room

d)

A student sits on the carpet

48.

The unit used to measure work is the

a)

Watt

b)

Newton

c)

Joule

d)

meter

49.

Calculate work: A 100 Newton force is applied to move a 15 kg object a distance of 5 meters?

a)

20 Joules

b)

75 Joules

c)

500 Joules

d)

1500 J

50.

Which of the following is the best example of work being done.

a)

doing homework

b)

lifting a box

c)

pushing a stationary box

d)

holding a box

51.

Two people shove on a wall with 100 N. The wall doesn’t move. How much work is done?

a)

100J

b)

100N

c)

0J

d)

0N

52.

if you push a cart with a force of 60 N for 2 m... how much work have you done

a)

120 J

b)

30 J

c)

120 N

d)

30 N

53.

what is the formula needed to solve for work?

a)

w=f/d

b)

w= fd

c)

w=f+d

54.

what is the unit of work?

a)

Newton

b)

Joule

c)

Watt

d)

meter

55.

what is the product of force and displacement?

a)

work

b)

power

c)

energy

work done and power

Total questions: 55

Worksheet time: 46mins

Similar Resources on Wayground