Free Printable Physics equations and calculations practice

Worksheets

Physics equations and calculations practice

Total questions: 65

Worksheet time: 2hrs 4mins

Name

Class

Date

What is the relationship between weight, mass and gravitational field strength?

Weight = mass / gravitational field strength

W = mg

Weight= mass x gravitational field strength

W =m/g

Which of the following equation is the average speed equation re-arranged so that 'time taken' is the subject.

time taken = average speed / distance travelled

time taken = average speed x distance travelled

time taken = distance travelled / average speed

time taken = distance travelled x average speed

What is the equation for the acceleration of an object?

change in velocity / time taken

change in time / velocity

change in time x velocity

change in velocity x time taken

State the relationship between work done, power, time taken?

Workdone= timetaken - power

Workdone = power - time taken

Power = workdone / time taken

What is the slope of a change in velocity graph vs time

distance

time

acceleration

momentum is .... to mass

directly proportional

inversely proportional

What is the relationship between speed, distance and time?

Speed = distance/time

Speed= distance x time

Distance= speed /time

Speed= time

What is the correct equation for acceleration

a = (v - u) / t

a = d / t

a = f x m

What is the correct equation linking force mass and acceleration

F = ma

m = Fa

a = Fm

10.

What is the correct equation for gravitational potential energy

m x g x h

m x g / h

m x h / g

11.

What is the correct equation for kinetic energy

1/2 x m x v²

m x v²

1 / 2 x v x m²

12.

What is the equation that links distance (s), force (F) and work done (W)?

Work Done = Force x Distance, or W=Fs

Work Done = Force / Distance, or W=F/s

Work Done = Distance / Force, or W=s/F

13.

What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s

676 J

52 J

17J

338 J

14.

How much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s?

27 J

18 J

9 J

2 J

15.

Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.

18 J

36 J

12 J

6 J

16.

what is the unit of work?

Newton

Joule

Watt

meter

17.

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

120 J

30 J

120 N

30 N

18.

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

100J

100N

19.

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

85,200 J

45,620 J

90,480 J

62,329 J

20.

If 150 Joules of work is needed to move a box 10 meters, what force was used?

1500 N

15 N

1.5 N

150 N

21.

How much work is done by lifting an object with a weight of 250 N a total of 2 m off the ground?

125 J

125 W

500 W

500 J

22.

An engine does 300 J of work in 10 seconds. How much power did it use?

3000 N

3000 W

30 W

30 J

23.

If a car weighs 3000 N and drives a distance of 10 m in 2 seconds, how much power does it use?

1,500 J

60,000 W

15,000 W

6,000 J

24.

What is the efficiency of a car that has enough fuel to drive 600 miles, but only actually drives 150 miles?

25%

400

.25

25.

A kettle uses 100J of electrical energy to produce 7J of sound energy and 93J of thermal energy. How efficient is the kettle?

100%

93%

95%

26.

A washing machine uses 250J of electrical energy to produce 125J of useful energy. How efficient is it?

50%

55%

100%

27.

Total energy = 200J
Useful energy = 20J

Workout the efficiency of this lightbulb.
$efficiency\ =\ \frac{useful\ enegy}{total\ energy\ in}\ \times100$

100%

80%

40%

10%

28.

A 0.4 kg hockey puck is moving at 20 m/s. What is the puck's momentum?

8 kg m/s

50 kg m/s

20 kg m/s

0.02 kg m/s

29.

A 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball in a perfectly elastic collision (momentum is completely transferred - the first ball stops moving). What is the velocity of the second ball after the collision?

5 m/s

2.5 m/s

10 m/s

7.5 m/s

30.

In a physics experiment, two carts of mass 1.5 kg each are rolled towards each other. The orange cart has a velocity of 2 m/s and the blue cart has a velocity of -1m/s. The carts stick together when they collide. Calculate their final speed.

0.5 m/s

1.0 m/s

0.33 m/s

0.67 m/s

31.

Two football players with mass 75 kg and 100 kg run directly toward each other with speeds of -6 m/s and 8 m/s respectively. If they grab each other as they collide, the combined speed of the two players just after the collision would be:

2 m/s

3.4 m/s

4.6 m/s

7.1 m/s

32.

A 120 kg lineman moving at -2 m/s tackles an 80 kg fullback moving at +8 m/s. If the fullback's velocity after they collide is +2 m/s, what is the lineman's velocity?

2 m/s

8.7 m/s

4.7 m/s

6 m/s

33.

While playing pool, the white cue ball strikes the 8 ball. Before the collision, the cue ball's velocity was 10 m/s and the 8 ball was at rest. If both ball's have a mass of 0.15 kg and the cue ball's velocity after the collision is 2 m/s, what is the 8 ball's velocity?

2 m/s

8 m/s

-2 m/s

1.5 m/s

34.

Billy was driving his car and when he reached the tollbooth he slowed from 190m/s to 12m/s in 20 second.

-8.9m/s²

8.9m/s²

9.8m/s²

-9.8m/s²

35.

The speed boats speed increased from 0m/s to 24m/s in a time span of 12 seconds.

4 m/s²

2 m/s²

8 m/s²

6 m/s²

36.

A motorcycle rider increases his speed from 25 m/s to to 55 m/s in 10 seconds

2.5 m/s²

4 m/s²

3 m/s

3 m/s²

37.

A cyclist in the Tour de France accelerates down a hill from 22 m/s to a speed of 37 m/s. This acceleration takes him 2 seconds. The acceleration is...?

7.5 m/s²

11 m/s²

18.5 m/s²

44 m/s²

38.

A cyclist accelerates from 0 m/s to 8 m/s in 3 seconds. What is his acceleration?

24 m/s²

2.67 m/s²

0.375 m/s²

11 m/s²

39.

A horse accelerates from 5 m/s to 10 m/s with acceleration of 2 m/s². For how many seconds did it accelerate for?

20 sec

10 sec

5 sec

2.5 sec

40.

Velocity has a negative /positive sign for _________, but speed does not.

magnitude

direction

meters

time

41.

What is the speed of a car travelling 50m in 4s?

200 m/s

12.5 m/s

12.5 m

200m

42.

How long does it take a car to travel 40m at 12m/s?

4.8 s

480 s

3.33 s

33.3 s

43.

What is the speed of an object that travels 60 meters in 4 seconds?

240 m/s

15 m/s

0.067 m/s

15 mph

44.

If a 10 kilogram object accelerates suddenly at 15 m/s^2, how much force was applied to the object?

150 Newtons

15 Newtons

150 kilograms

100 kilograms

45.

If a force of 50 Newton's was applied to an object with a mass of 500 grams, what will the object's acceleration be? (HINT - UNITS!)

10 m/s^2

.1 m/s^2

100 m/s^2

1 m/s^2

46.

What is the gravitational potential energy (GPE) of a 1 kilogram book that is 1 meter above the ground?

g = 9.8 m/s²

9.8 Joules

1.0 Joule

0.10 Joule

11.8 m/s²

47.

How much power is required to raise a 200-kg crate a vertical distance of 2 m in a time of 4 s?

400 W

1000 W

1600 W

4000 W

48.

Ian and Steve ski down the 75 m slope in 80 seconds using 400 N of penguin force. Calculate their penguin power!

375 W

37.5 W

426.7 W

240 000W

49.

In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the resultant force?

50N to the left.

350N to the left.

350N to the right.

50N to the right.

50.

What is the resultant force?

40 N, Left

0 N, Balanced

400 N, Right

40 N, Right

51.

What is the resultant force?

400 N, Up

400 N, Down

800 N, Up

800 N, Down

52.

What is the resultant force?

17 N, Left

6N, Right

11N , Left

12N, Left

53.

What is the resultant force?

40N, Left

40N, Right

0N, Balanced

75N, Right

54.

A squirrel has a weight of 4.9 N. What is his Mass if he is running on the Ground? g is 9.81

4.9 kg

9.8 N/kg

0.5 kg

5.0 kg

55.

A girl weighs 300 N what is her mass here on Earth?

40.8 kg

41 kg

30.6 kg

300 N

56.

The specific heat of platinum is 133 J kg^-1°C^-1. How much heat(Q) is released when a 10 g piece of platinum cools from 100°C to 50°C?

66.5 J

665 J

0.0266 J

0.665 J

57.

20 g of water. specific heat of water is 4200 J kg^-1°C^-1. temperature changes from 25° C to 20° C, how much heat energy (Q) moves from the water to the surroundings?

418 J

430 J

420 J

42000 J

58.

The specific heat(c) of copper is 390 $J\ kg^{-1}\degree C^{-1}$ . What is the temperature change when 100 J of heat is applied on the 20 g of copper?

12 °C

24.12°C

1.95 °C

12.82 °C

59.

The specific heat capacity of a substance is 1000 J/kg^oC. How much energy is required to raise 1 kg of it by 1^oC?

10 J

100 J

1000 J

10,000 J

60.

The temperature of a 6.0 g sample of glass changed from 20.0°C to 45.0°C when it absorbed 550 J of heat. What is the specific heat of this glass?

0.27 J/g °C

3.7 J/g °C

130 J/g °C

12 J/g °C

61.

Find the angle made by adjacent side 7 and hypotenuse is 14.

60⁰

30⁰

45⁰

50⁰

62.

Find the missing side, where the hypotenuse is 14 and the adjacent side is 7.

15.6

12.1

5.25

63.

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

104N

60N

-104N

95N

64.

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

104N

-60N

60N

95N

65.

A late traveler rushes to catch a plane, pulling a suitcase with a force directed 30.0° above the horizontal. If the horizontal component of the force on the suitcase is 60.6 N, what is the force exerted on the handle?

95.6

53.0

70.0

65.2

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Physics equations and calculations practice

Total questions: 65

Worksheet time: 2hrs 4mins

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