Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

FORM 4 CHAPTER 3 GRAVITATION

Total questions: 86

Worksheet time: 2hrs 19mins

Name
Class
Date
1.

Calculate the gravitational force between two objects when they are 0.750m apart. Each object has a mass of 5.00kg.

a)

2.96x10-7N

b)

3.00x10-9N

c)

2.22x10-9N

d)

2.23x10-8N

2.

Calculate the gravitational force between two objects when they are 0.750m apart. Each object has a mass of 5.00kg.

a)

2.96x10-7N

b)

3.00x10-9N

c)

2.22x10-9N

d)

2.23x10-8N

3.
Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if the distance between them were doubled?
a)
9
b)
18
c)
72
d)
144
4.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance 
b)
mass and matter
c)
distance and weight 
d)
weight and mass
5.

Two spherical objects have masses of 8000 kg and 1500 kg. Their centers are separated by a distance of 1.5 m. Find the gravitational attraction between them

a)

5.4 X 10-4 N

b)

1.2 X 107 N

c)

3.6 X 10-4 N

d)

5.33 N

6.
Complete the following statement: The farther away two planets are the _______ the gravitational force between them.
a)
more
b)
same
c)
dosen't matter
d)
less
7.

Which configuration will result in the greatest gravitational force?

a)

small masses far apart

b)

large masses far apart

c)

small masses close together

d)

large masses close together

8.

A 500 kg asteroid is located 3.4 x107m from the center of Earth. The mass of Earth is 6.0x1024 kg. What is the gravitational force between the asteroid and Earth?

F = GMm/r2

G= 6.67 x 10-11

a)

1.73 x 102 N

b)

4.63 x 105 N

c)

2.94 x 103 N

d)

6.42 x 104 N

9.

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

a)

Doubles

b)

Quadruples

c)

Cut in Half

d)

4x Smaller

10.

The law of universal gravitation is credited to whom?

a)

Einstein

b)

Galileo

c)

Darwin

d)

Newton

11.
Force of gravity is directly proportional to
a)
Mass
b)
Weight
c)
Distance
d)
Time
12.
If Earth's mass was cut in half, what would happen to your mass?
a)
increase because gravitational force increases
b)
decrease because gravitational force decreases
c)
decrease because gravitational force increases
d)
nothing, mass is not affected by gravitational force
13.
Double the mass of an object, what happens to the force of attraction?
a)
4 times stronger gravity force
b)
4 times weaker gravity force
c)
2 times weaker gravity force
d)
2 times stronger gravity force
14.
As distance separating the objects increases the force
a)
increases
b)
decreases
c)
stays the same
15.

The number 6.67 x 10 -11 N* m2 / kg2 is called the

a)

Universal speed constant

b)

centripetal force

c)

Universal Gravitational constant

d)

Earth's Gravitational constant

16.

Two masses m1 and m2 are separated by a distance R and gravitaional force between them is F. If the distance R is doubled the force will now be _

a)

4F

b)

2F

c)

F/2

d)

8F

e)

F/4

17.

Two masses m1 and m2 are separated by a distance R and gravitaional force between them is F. If the distance R is reduced to R/2 the force will now be

a)

8F

b)

2F

c)

F/4

d)

F/2

e)

4F

18.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
19.

M represented in the formula is the mass of...

M di dalam formula adalah jisim untuk...

a)

A

b)

B

20.

Speed of Planet A at RS is faster than PQ

Planet A lebih laju di RS berbanding di PQ.

a)

True

Betul

b)

False

Salah

21.

Which of the following shows the formula to calculate escape velocity of an object from the surface of the Earth?


Antara berikut yang manakah menunjukkan formula untuk mengira halaju lepas sesuatu objek dari permukaan Bumi Bumi?

a)
b)
c)
d)
22.

Which of the following shows the correct way to get the value of r?


Yang manakah antara berikut menunjukkan cara untuk mendapatkan nilai r?

a)

R + h

b)

h

c)

R

d)

R - h

23.

A satellite orbits the Earth with linear speed 3.87 x 10^3 ms-1. Calculate the radius of the orbit.


Sebuah satelit mengelilingi Bumi dengan laju linear 3.87 x 10^3 ms-1. Kira jejari orbit.


(G = 6.67 x 10-11 N m2 kg-2, M = 5.97 x 1024 kg, R = 6.37 x 106 m)

a)

5.42 x 10^7 m

b)

3.17 x 10^7 m

c)

2.66 x 10^7 m

24.

A satellite with mass 1200kg and a satellite with mass 1500kg have different minimum velocity that have to be reached before they are able to escape Earth's gravity.


Satelit dengan jisim 1200kg dan satelit dengan jisim 1500kg mempunyai halaju minimum yang berbeza untuk mengatasi graviti Bumi.

a)

True

Betul

b)

False

Salah

25.

Calculate the linear speed of a satellite in an orbit 900 km above Earth’s surface. Given G = 6.67 x 10^-11 N m^2 kg^-2, radius of earth is 6370 km and mass of the earth is 5.97 x 10^24 kg.

a)

1.05 x 10^4 m s^-1

b)

2.97 x 10^4 m s^-1

c)

9.40 x 10^5 m s^-1

d)

7.40 x 10^3 m s^-1

26.

Calculate the escape velocity of a satellite in an orbit 300 km above Earth’s surface. Given G = 6.67 x 10^-11 N m^2 kg^-2, radius of earth is 6370 km and mass of the earth is 5.97 x 10^24 kg.

a)

7.73 km s^-1

b)

10.9 km s^-1

c)

36.4 km s^-1

d)

244 km s^-1

27.

Which of the following is true about non-geostationary satellites?

a)

Its orbital period around the earth is one day.

b)

It is at a height of (35000-36000) km above the equator of surface of the earth.

c)

Example of the satellites are GPS.

d)

It can be in an orbit of which is very close to the surface of the earther or very further away from the surface of the earth.

e)

Example of the satellites are communication satellites.

28.

The name of the first man made satellite is ________ and was launched by _________.

a)

Vostok, Russia

b)

Sputnik 1, Russia

c)

Measat 1, Malaysia

d)

Sputnik 2, Russia

29.

The first men on the moon were ____________ and _________ in the year __________.

a)

Neil Armstrong, Buzz Aldrin, 1987

b)

Neil Armstrong, Buzz Aldrin, 1969

c)

Yuri Gagarin, Sheikh Muszaphar Shukor, 2007

d)

Yuri Gagarin, Buzz Aldrin, 1969

30.
People can find out their exact location on Earth by using a...
a)
Global Drection System (GDS) receiver.
b)
Regional Positioning System (RPS) receiver.
c)
Global Positioning System (GPS) receiver.
31.

How does a satellite help us ?

a)

helps to collect information

b)

helps us to collect information and facilitate communication

c)

helps us play our video games better

32.

What is the name of a body or object that orbits a larger body?

a)

moon

b)

comet

c)

asteroid

d)

satellite

33.
The moon and other satellites rotate around the earth. Identify the force that keeps these satellites in orbit.
a)
gravity
b)
friction
c)
a strong force
d)
electromagnetic force
34.

The velocity a rocket must reach to escape from a planet or moons gravitational pull

a)

Vacuum

b)

Satellite

c)

Escape velocity

d)

Geosynchronous orbit

35.
A satellite which takes 24 hours for 1 complete orbit is called a
a)
polar satellite
b)
geostationary satellite
36.
A geostationary satellite orbits the Earth....
a)
once every 24 hours
b)
once every 10-11 hours
c)
once every week
d)
once every 4 weeks
37.
Which of the following is needed to calculate escape speed for a rocket from earth?
a)
mass of fuel used in the rocket
b)
mass of the rocket
c)
mass of Earth
d)
all of the above
38.
The minimum velocity required to leave the atmosphere is called the...
a)
orbital velocity
b)
ejection velocity
c)
terminal velocity
d)
escape velocity
39.

Two satellites of equal mass are in circular orbit around a planet. Satellite b is twice as far out. How much stronger is the planet’s gravity on satellite a (compared to satellite b)?

a)

2× as much

b)

3× as much

c)

4× as much

d)

5× as much

40.

Which diagram best shows the gravitational interaction between Earth and a satellite?

a)
b)
c)
d)
41.

Calculate the orbital height, h of the following satellite given the orbital velocity.


Linear speed = 3.871 km s-1

Earth's radius, R = 6370 km


Earth Mass, M = 5.97 x 1024 kg


Gravitational constant, G = 6.67 x 10-11 N m2 kg-2


Orbit height, h = (a)   x 103 km


(State your answer to one decimal place) 👈

42.
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,
a)
the larger the constant k is.
b)
the smaller the constant k is.
c)
the longer the orbital period is.
d)
the shorter the orbital period is.
43.

Which planet will take the most amount of time to revolve around the Sun?

a)

Mercury

b)

Venus

c)

Earth

d)

Mars

44.
Where is the planet moving faster
a)
Position A to B
b)
Position B to C
c)
Position H to I
d)
Position I to J
45.
A planet moves __________ when it is farthest from the sun.
a)
faster
b)
slower
46.
The path a planet travels around the sun is called its 
a)
orbit
b)
ellipse
c)
barycenter
d)
precession
47.

The orbital radius of Venus is  10.8×101010.8\times10^{10}  m . Its rotation period is 224.7 days. What is its orbital speed. 

a)

20  km s−1km\ s^{-1}  

b)

25   km\ s^{-1}  

c)

35   km\ s^{-1}  

d)

62   km\ s^{-1}  

48.

Diagram shows a planet orbiting around the sun. Based on Kepler's Second Law, Which of the following regarding the speeds of the planet at positions

 P(vp), Q(vQ) and R(vR)P\left(v_p\right),\ Q\left(v_Q\right)\ and\ R\left(v_R\right)  is correct 

a)

 vp =vQ =vRv_p\ =v_Q\ =v_R  

b)

 vp >vQ >vRv_p\ >v_Q\ >v_R  

c)

 vp <vQ <vRv_p\ <v_Q\ <v_R  

d)

 vp >vR >vQv_p\ >v_R\ >v_Q  

49.

Which of the following shows correctly the relationship between the period of orbit, T and radius of orbit, r, of a planet?

a)

A

b)

B

c)

C

d)

D

50.

Diagram shows the planet Saturn with its four satellites. R and T are orbital radius and orbital period of satellites respectively.

Which of the following statements is true?

a)

the orbital periods of all the satellites are the same.

b)

The force on the satellite is tangential to the orbit

c)

the attractive force on each satellite is directly proportional to 1R2\frac{1}{R^2}

d)

T3R2\frac{T^3}{R^2} is constant for all satellites.

51.

What is the reason for the motion of the moon on its orbit?

a)

The gravitational force exerted on the Earth by the moon

b)

The gravitational force exerted by the sun

c)

The gravitational force exerted by the planets

d)

The gravitational force exerted on the Moon by the earth

52.

A kine drawn from a planet to the Sun always sweeps over equal areas in equal intervals of time When the planet moves further from the sun, the planet will move

a)

Faster

b)

Slower

c)

Constant at every point

d)

None of the above

53.

The period of geostationary artificial satellite is

a)

24 hours

b)

6 hours

c)

48 hours

d)

12 hours

54.

The period of a satellite in a circular orbit of radius R is T. The period of another satellite in circular orbit of radius 4R is

a)

8T

b)

T8\frac{T}{8}

c)

2T

d)

T4\frac{T}{4}

55.

The distance of venus and Saturn from the sun are nearly 101110^{11^{ }}   m and  101210^{12}  m respectively. Assuming that they  move in circular orbits, their periodic times would be in ratio of

a)

 0.10.10.1\sqrt{0.1}  

b)

100

c)

 101010\sqrt{10}  

d)

10000

56.

Kepler’s third law states

a)

The orbit of a planet around the sun is an ellipse, with the sun at one focus

b)

The semimajor axis is equal to the planet’s average distance from the sun

c)

The square of the orbital period of a planet is proportional to its orbital radius

d)

None of these answers is correct

57.

If r represents the radius of the orbit of a satellite of mass m moving round a planet of mass M the velocity of the satellite is given by

a)

V=(GMr)V=\sqrt{\left(\frac{GM}{r}\right)} ,

b)

v2 = GMmrv^2\ =\ \frac{GMm}{r}

c)

v=GMmr2v=\frac{GMm}{r^2}

d)

v2 = gMRv^2\ =\ \frac{gM}{R}

58.
Kepler's 2nd Law deals with 
a)
the shape of the planets' orbits
b)
the speed/area the planet travels 
c)
the length of time it takes the planet to orbit the sun
59.

Kepler's third law is represented by the following equation:

Hukum Kepler ketiga ditunjukkan oleh  persamaan:

a)
b)
c)
d)
60.

The period of the Moon's orbit is 27.0 days. The radius of the Moon's orbit is  3.8 ×1083.8\ \times10^8  m. The period of a geostationary satellite is 1 day. What is the radius of the geostationary satellite's orbit. 

a)

 4.2 ×1074.2\ \times10^7  m

b)

 5.4 ×1075.4\ \times10^7  m

c)

 6.6 ×1076.6\ \times10^7  m

d)

 8.5 ×1078.5\ \times10^7  m

61.

The accelerations due to gravity on the surfaces of two planets are equal in magnitudes if

a)

mass

b)

massradius\frac{mass}{radius}

c)

massradius2\frac{mass}{radius^2}

d)

massradius3\frac{mass}{radius^3}

62.
What is the formula Charles' Law?
a)
V = T
b)
VT = VT
c)
T1 / V1 = T2 / V2
d)
V1 / T1 = V2 / T2
63.
What is the formula Charles' Law?
a)
V = T
b)
VT = VT
c)
T1 / V1 = T2 / V2
d)
V1 / T1 = V2 / T2
64.

Centripetal acceleration acts towards the ___________ of the circular motion

a)

centre

b)

circumference

65.

A Hot Wheels toy car races around a circular track that has a radius of 1.2 meters. It moves around the track with a velocity of 1.8 ms-1. What is the toy’s centripetal acceleration?

a)

1.5 ms-2

b)

2.7 ms-2

c)

2.16 ms-2

d)

3.89 ms-2

66.

A dolphin swims in a circle with a radius of 30 m and moves with a velocity of 3.2 ms-1. What is the dolphin’s centripetal acceleration?

a)

0.341 ms-2

b)

0.106 ms-2

c)

96 ms-2

d)

307.2 ms-2

67.

The velocity is always _____ to the line of a circle.

a)

outwards

b)

towards the center

c)

faster

d)

tangent

68.

Centripetal acceleration always points

a)

in the direction of the object's motion

b)

in the opposite direction of the object's motion

c)

towards the center of the circle

d)

towards the outside of the circle

69.

A 25kg boy is riding a merry-go-round with a radius of 5 m. What is the centripetal force on the boy if his velocity is 6 ms-1?

a)

180 N

b)

150 N

c)

120 N

d)

245 N

70.

A man-made satellite of mass 400 kg orbits the Earth with a radius of 8.2 x 106 m. Linear speed of the satellite is 6.96 x 103 ms-1. What is the centripetal force acting on the satellite?

a)

195.036 N

b)

2363 N

c)

1936 N

d)

2000 N

71.

A particle P is moving in a circle with uniform speed. Which one of the following diagrams correctly shows the direction of the acceleration a and velocity v of the particle at one instant of time?

a)
b)
c)
d)
72.

What happens to gravity as distance increases?

a)

there was never any gravity in space

b)

It decreases rapidly

c)

it in increases rapidly

d)

It does not change

73.
Where is the net force when the rollercoaster is at the top of the loop?
a)
Towards the sky
b)
Towards the Right
c)
Towards the left
d)
Towards the ground
74.

What is the equation to calculate the centripetal force for an object?

a)

F = mT

b)

F = mv2/r

c)

F = mu mg

d)

F = mg

75.
What relationship exists between the radius of a circle and the centripetal acceleration?
a)
direct
b)
inverse
c)
exponential
d)
inverse squared
76.

A dolphin swims in a circle with a radius of 30 m and moves with a velocity of 3.2 ms-1. What is the dolphin’s centripetal acceleration?

a)

0.341 ms-2

b)

0.106 ms-2

c)

96 ms-2

d)

307.2 ms-2

77.

Why should you reduce speed around a turn if the road is icy?

a)

Because your car will travel in a straight line unless forced to do otherwise

b)

Because the ice reduces the frictional force between the tires and the road.

c)

Because a minimum amount of centripetal force is required to keep your car moving around the curve.

d)

All of the above.

78.

An engineer is planning a road with a turn. If the speed limit is 20 m/s and the centripetal acceleration cannot exceed 8.5 m/s/s, how big must the radius of the turn be?

a)

2.4 m

b)

47 m

c)

170 m

d)

3400 m

79.

A yo-yo is whirled on a string, then the string breaks. What causes the yo-yo to move off in a straight line?

a)

centrifugal force

b)

centripetal force

c)

inertia

d)

centripetal acceleration

80.

A 12 kg object undergoes circular motion with a radius of 4 m and a speed of 18 m/s. What is the centripetal acceleration of the object?

a)

1.125 m/s2

b)

81 m/s2

c)

4.5 m/s2

d)

36 m/s2

81.
Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.
a)
10 N
b)
20 N
c)
30 N
d)
40  N
82.
A horse gallops around a circular arena.  The centripetal force on the horse is ___.
a)
directed outward
b)
tension
c)
directed toward the center of the arena
d)
9.8 N
83.
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.
a)
2.4 m/s
b)
3.6 m/s
c)
3.9 m/s
d)
4.2 m/s
84.

A ball on a string is spun around in a circle. Which of the following quantities is not constant?

a)

mass

b)

force

c)

velocity

d)

acceleration

85.

NAME

4 lines
86.

CLASS

a)

5S

b)

5T

c)

5A

d)

5R

e)

5P

Similar Resources on Wayground

Ôn tập giữa kì 11 - BT

91 questions

Ôn tập giữa kì 11 - BT

quiz

Worksheet

•

10th Grade

Physics Exam Review

90 questions

Physics Exam Review

quiz

Worksheet

•

9th - 12th Grade

Year 10 Physics revision

86 questions

Year 10 Physics revision

quiz

Worksheet

•

10th Grade

Planetary Motion and Relativity

81 questions

Planetary Motion and Relativity

quiz

Worksheet

•

9th - 12th Grade

Physics Final Review Semester 2

84 questions

Physics Final Review Semester 2

quiz

Worksheet

•

9th - 12th Grade

momentum dan impuls

85 questions

momentum dan impuls

quiz

Worksheet

•

10th Grade

PS PRE-TEST Energy

87 questions

PS PRE-TEST Energy

quiz

Worksheet

•

9th - 12th Grade

IGCSE Physics Revision

85 questions

IGCSE Physics Revision

quiz

Worksheet

•

8th - 10th Grade