Download Form 3 Science Test Test 6: Force, energy and motion Total: 50

Form 3 Science Test
Test 6: Force, energy and motion
Total: 50 marks
Name: ______________________________________ Date: ______________
Section A
Write down the correct letter for each of the following questions. You must choose one
answer only.
1.
2.
Who developed the Laws of Motion?
A
Sir Adrian Newton
B
Sir Isaac Newton
C
Galileo Galilei
D
Kelvin
Choose the correct answer.
A
Newton’s Laws of Motion predict and explain why things move fast, move
slowly or stop moving.
B
In terms of Newton’s Second Law of Motion, a force changes the
movement of an object.
C
Newton’s Third Law of Motion states that all moving objects move at a
constant speed.
D
All of the above.
1/6
Science Test 6
© Pearson Botswana. Permission is given to photocopy these pages for school use.
3.
4.
Choose the correct answer.
A
Air resistance is a form of friction.
B
Friction is the force that makes moving objects come to a stop.
C
Friction will be low when the ground is slippery.
D
All of the above.
Choose the correct answer.
A
If a ball is moving in the air, it will eventually fall to the ground due to the
force of gravity.
B
If a ball is moving in the air, it will eventually fall to the ground due to the
force of friction.
C
Gravity is the force that ensures that the planets move in circles around
the moon and not in a straight line.
D
5.
6.
Gravity is the force that ensures that the planets move in a straight line.
Choose the correct answer.
A
The velocity of an object is how fast it is going.
B
The velocity of an object is how slow it is going.
C
Velocity is when we multiply the mass of something with its height.
D
Boys naturally have a greater velocity than girls.
What is momentum?
A
The speed at which we move
B
The answer we get when we multiply the mass of something by
its velocity
C
The answer we get when we divide the mass of something by its velocity
D
None of the above.
2/6
Science Test 6
© Pearson Botswana. Permission is given to photocopy these pages for school use.
7.
Choose the correct answer.
A
Forces do not work on their own.
B
Forces act in pairs.
C
When an object exerts a force on another object, the second object will
exert an equal but opposite force the first object.
D
8.
9.
10.
All of the above.
What is the SI unit of force?
A
The metre
B
The joule
C
The Newton
D
The Kelvin
What instrument is used to measure force?
A
A thermometer
B
A forcemeter
C
A forceps
D
A hydrometer
Choose the correct answer.
A
The formula for force is F = x where F stands for force, stands for
mass and for acceleration.
B
The formula for force is F = x where F stands for force, stands for
momentum and for acceleration.
C
The formula for force is F = x where F stands for force, stands for
mass and for altitude.
D
The formula for force is F = x where F stands for friction, stands for
mass and for acceleration.
[10]
3/6
Science Test 6
© Pearson Botswana. Permission is given to photocopy these pages for school use.
Section B
11.
Explain Newton’s First Law of Motion, by providing an example from
everyday life.
(4)
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
12.
Explain Newton’s Second Law of Motion by proving an example from
everyday life.
(4)
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
13.
Explain Newton’s Third Law of Motion by providing an example from
everyday life.
(4)
________________________________________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
4/6
Science Test 6
© Pearson Botswana. Permission is given to photocopy these pages for school use.
14.
If a runner has a mass of 80 kg, what is the force he will have to exert to move
at an acceleration of 5 m/s?
(4)
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
15.
Kagiso is a tennis player. What acceleration will she give to a ball with a mass of
200 g when she hits it with a force of 100 N?
(4)
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
[20]
Section C
16.
Write out an experiment you would conduct to show what causes a ball to
bounce off a wall. Explain your findings in terms of what you know about force.
(10)
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
5/6
Science Test 6
© Pearson Botswana. Permission is given to photocopy these pages for school use.
17.
There is no application for Science in everyday life. Write a short paragraph to
disprove this statement. Use examples from what you have learnt about force
to support your answer.
(10)
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
_________________________________________________________________
[20]
Total: 50
6/6
Science Test 6
© Pearson Botswana. Permission is given to photocopy these pages for school use.