Free Printable Module 5 Review

Worksheets

Module 5 Review

Total questions: 87

Worksheet time: 2hrs 37mins

Name

Class

Date

A projectile is fired horizontally at 10 m.s-1 from the top of a cliff, 55 m high.

What is the magnitude of the projectile’s velocity as it impacts the water?

32.8 m.s-1

1078 m.s-1

1175.8 m.s-1

34.3 m.s-1

An astronaut is standing on Mars. The astronaut throws an object of mass 0.30 kg vertically upward at an initial speed of 9.0 m.s-1. It reaches a maximum height of 11 metres.

What is the magnitude of the acceleration of the object?

1.4 ms-2

3.7 ms-2

9.0 ms-2

9.8 ms-2

A device launches two identical balls (x and y) simultaneously in a horizontal direction from the same height, with different horizontal velocities. The results are shown.

x hits the ground before y as it is closer to the launch site

y hits the ground before x as it has a higher launch velocity

x and y hit the ground simultaneously with the same velocity

x and y hit the ground simultaneously with different velocities.

A ball is launched horizontally from a cliff with an initial velocity of u m.s-1. After two seconds, the ball’s velocity is in the direction 45o from the horizontal.

What is the magnitude of the velocity in m.s-1 at two seconds?

1.5 u

19.6

27.7

A projectile was launched from the ground. It had a range of 70 metres and was in the air for 3.5 seconds.

At what angle to the horizontal was it launched?

30 degrees

40 degrees

50 degrees

60 degrees

An aeroplane is flying horizontally over level ground. It has an altitude of 490 m and a velocity of 100 ms-1. As the aeroplane passes directly above a cross marked on the ground, an object is released from the aeroplane.

How far away from the cross will this object land?

490 m

1000 m

10 000 m

49 000 m

What is the horizontal acceleration of a projectile?

0 m/s²

9.8 m/s²

Two objects of the same mass are launched from the ground. Object A has a launch angle of 45, while Object B has a launch angle of 65. Which object will hit the ground first?

Both objects hit the ground at the same time

unable to determine with the given information

What is the vertical acceleration of a projectile?(neglect air resistance)

0 m/s²

9.8 m/s²

10.

Which angle will produce the greatest height (in the absence of air resistance)?

0 degrees

45 degrees

90 degrees

none of these

11.

At what point is v_y= 0 m/s?

None of these points

12.

At what point is v_x= 0 m/s?

None of these points

13.

A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How long until the ball reaches the ground?

0.45 s

0.67 s

0.22 s

0.47 s

14.

A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground?

14.3 m

30.55 m

65 m

43.55 m

15.

A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How long until the bullet reaches the ground?

0.52 s

0.27 s

0.13 s

0.36 s

16.

A bullet is fired horizontally at a height of 1.3 meters at a velocity of 950 m/s. Assume no air resistance. How far did the bullet travel horizontally when it hit the ground?

252.04 m

489.32 m

126.02 m

346.00 m

17.

A cannonball is fired at a 45.0° angle and an initial velocity of 625 m/s. Assume no air resistance. What is the vertical component of the cannonball’s velocity? What is the horizontal component of the cannonball’s velocity?

-625 m/s; 625 m/s

441.9 m/s; 441.9 m/s

-441.9 m/s; 441.9 m/s

0 m/s; 625 m/s

18.

A cannonball is fired at a 45.0° angle and an initial velocity of 625 m/s. Assume no air resistance. How long until the cannonball hits the ground?

75.4 s

45.2 s

62.3 s

90.2 s

19.

A cannonball is fired at a 45.0° angle and an initial velocity of 625 m/s. Assume no air resistance. How high did the cannonball travel?

9963 m

39,771 m

7.22 m

17183.25 m

20.

A baseball is thrown at a 22.5° angle and an initial velocity of 65 m/s. Assume no air resistance. What is the vertical component of the ball’s velocity? What is the horizontal component of the ball’s velocity?

24.9 m/s; 60.1 m/s

60.1 m/s; 24.9 m/s

0 m/s; 65 m/s

17183.25 m

21.

A baseball is thrown at a 22.5° angle and an initial velocity of 65 m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground?

500.76 m

31.63 m

103.7 m

305.05 m

22.

This Graph shows the vertical velocity of an object that has been thrown in the air. Its starting velocity is 40 m/s. What height does the object reach at its peak?

0 m

20 m

40 m

80 m

160 m

23.

If a ball thrown straight up into the air takes 4 seconds to reach the top (peak), how long will it take to travel from the peak back to the original position?

24.

A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How far did the ball travel horizontally when it hit the ground?

14.3 m

30.55 m

65 m

43.55 m

25.

A ball is thrown horizontally at a height of 2.2 meters at a velocity of 65 m/s. Assume no air resistance. How long until the ball reaches the ground?

0.45 s

0.67 s

0.22 s

0.47 s

26.

Which represents the acceleration of the ball?

27.

Which of the following depict the speed of the blowing ball?

28.

Which of the following units is used for tangential velocity?

m/s²

m/s

29.

Which of the following is the unit for centripetal force?

m/s²

kg⋅m/s

30.

Planets A, B and C are identical. A and C have a giant moon orbiting them, while B has a lightweight artificial satellite orbiting it, as shown in the diagram. Which planet has the strongest gravitational interaction with its satellite?

Planet A, because its moon is heavy and close to it.

Planet B, because only a lightweight object can orbit without falling down.

Planet C, because it can interact with a heavy object that is far away.

All have the same gravitational attraction, because the planets are all the same mass.

31.

According to Kepler's Second Law, the areas of triangle A and B are equal and took an equal amount of time to create. What must be true as a result?

The planet must travel at a constant speed throughout it's orbit

The planet traveled faster through triangle A than triangle B

The planet traveled faster through triangle B than triangle A

The planet moves faster when it's further away from the sun

32.

The period is the length of time to complete one full cycle. What is the period of a planet around the sun?

The amount of times a planet orbits the sun in an Earth year

The number of times the planet rotates in an Earth year

The amount of distance a planet travels in an Earth year

The time it takes for the planet to complete its orbit

33.

Each planet below has the same mass (M) and an identical rocket orbiting at a distance (D). The darker the planet, the denser the material. Which rocket experiences a stronger force of gravity?

A, higher density means stronger gravity when distance to center of the planet is the same.

B, smaller distance to the surface of the planet means stronger gravity when mass of the planet is the same.

Both the same, each planet has the same mass and the rocket is at the same distance from the center of the planet.

34.

An object is moving in uniform circular motion as shown in the picture. Which arrow best represents the direction of the Net Force acting on the object?

35.

How does the gravitational force the Earth exerts on the Sun compare to the gravitational force the Sun exerts on the Earth?

The gravitational force of the Sun on the Earth is larger

The gravitational force of the Earth on the Sun is larger

The gravitational forces are equal

There's not enough information to answer the question

36.

37.

38.

39.

40.

41.

42.

43.

44.

Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s².

2.4 m/s

3.6 m/s

3.9 m/s

4.2 m/s

45.

What's the centripetal acceleration of an object traveling 2.3 m/s around a circle of diameter 0.6 m?

5 m/s²

17.63 m/s²

10 m/s²

8.81 m/s²

46.

A toy car is following a circular path with a constant speed of v=3 m/s . If the radius of the circular path is 1 m, find The centripetal acceleration of the car

30 m/s²

3 m/s²

9 m/s²

6 m/s²

47.

You put a ball on the end of a string. You swing the ball with a rotation speed of 5.6 m/s. The mass of the ball is 2.0 kg. The length of the string is 1.60 m.

Calculate the centripetal acceleration.

19.6 m/s²

8.96 m/s²

3.50 m/s²

7.00 m/s²

48.

Calculate the amount of centripetal force it takes for a softball pitcher to rotate a ball with a velocity of 3 m/s if the ball weighs .12 kg and her arm is .65 meters long.

.38

1.23

.55

1.66 N

49.

Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.

10 N

20 N

30 N

40 N

50.

A 22.0 kg child is riding a playground merry-go-round that is rotating at 40.0 rev/min. What centripetal force must she exert to stay on if she is 1.25 m from its center?

120 N

240 N

480 N

960 N

51.

A car is making a turn at speed v. The radius of the turn is r and the centripetal force on the car is F.

If the car rounds the same curve at speed 2v, what is the required centripetal force?

0.5 F

52.

The combined mass of a race car and its driver is 600 kg. Travelling at constant speed, the car completes one lap around a circular track of radius 160 m in total time of 36 s. What is the magnitude of the centripetal acceleration of the car?

0.17 m s^-2

4.9 m s^-2

78 m s^-2

100 m s^-2

53.

A rock attached to a string swings in a vertical circle. At the highest point,

no forces act on the rock.

only one force acts on the rock.

two forces act on the rock and their resultant is zero.

two forces act on the rock and their resultant is not zero.

54.

An aeroplane is circling in the sky at a speed of 150 m s⁻¹. The aeroplane describes a circle of radius 20 km.

For a passenger of mass 80 kg inside this aeroplane, calculate her centripetal acceleration.

0.0075 m s⁻²

1.13 m s⁻²

7.5 m s⁻²

15 m s⁻²

55.

An aeroplane is circling in the sky at a speed of 150 m s⁻¹. The aeroplane describes a circle of radius 20 km.

For a passenger of mass 80 kg inside this aeroplane, calculate the centripetal force acting on her.

0.60 N

90 N

600 N

1200 N

56.

The diagram shows a stone tied to the end of a length of string and is whirled round in a horizontal circle . What provides the centripetal force on the stone?

The weight of the string.

The friction in the string.

The tension in the string.

The air resistance from the surroundings.

57.

which are the following is Newton’s Law of gravitation ?

$W=\frac{GMm}{r}$

$F\ =\frac{GMm}{r^2}$

$V\ =\sqrt{\frac{GM}{r}}$

$g=-\ \frac{GM}{r}$

58.

A satelite is orbiting about the earth at the height of 45 km from the earth surface. the satelite's velocity is $7.88\ \times10^{3\ }ms^{-1}$ . what is the mass of earth?

$6.0\times10^{26}\ kg$

$6.4\ \times10^{6\ }kg$

$5.56\ \times10^{26}kg$

$6.0\ \times10^{24\ }kg$

59.

What happens to Gravitational force if I double both of the masses but don't change their distance?

doubles

half as big

4x bigger

4x smaller

60.

If I double the mass of one object, but don't change anything else... WHat happens to the gravitational force between two objects?

Doubles

Quadruples

Cut in Half

4x Smaller

61.

What is true about the area between points A, B and the Sun, and the area between points H, I and the Sun?

The area between A, B and the Sun is the largest.

The area between H, I and the Sun is the largest

Both areas are equal in size

There is not enough information to determine the areas

62.

Using Newton's law of gravity:
F = Gm₁m₂/d².
G=6.67x10-¹¹ NM²/KG²Calculate the force between two objects that have masses of 70 kilograms and 100 kilograms separated by a distance of 1 meter. Use “G” for the Gravitational constant.

0.0000466

4.66x10⁷

-0.000000466

4.66x10-⁷

63.

According to Kepler's 3rd law, the square of the time it takes for an object to orbit, T, is directly related to the cube of the distance, r, between the object and what it is orbiting.
What this means is that if a satellite moves away from what it is orbiting,

the larger the constant k is.

the smaller the constant k is.

the longer the orbital period is.

the shorter the orbital period is.

64.

The speed at which any planet moves through space is constantly changing. In a perfectly circular orbit, the orbital radius of the planet would be constant and therefore so would be its observed angular velocity. In elliptical orbits, the velocity varies. In elliptical orbits, the orbital radius of the satellite will vary and therefore so will its velocity. The planet travels "faster" when closer to the Sun, then "slower" at a more distant radius. According to Newton's 2nd Law, what is the underlying force behind this change in velocity?

Friction

Gravity

Mass

Projectile motion

65.

Kepler’s 3rd law states the square of the orbital period is proportional to the cube of the orbital radius. (T²=r³)

If a planet's orbital radius is doubled, what happens to the length of a year on that planet?

It will become twice as long

It will become about 8 times as long

It will become 2.8 times as long

It will remain the same

66.