WorksheetsMeasuring Force
Total questions: 25
Worksheet time: 25mins
According to Newton’s Third Law, what happens when a swimmer pushes against the pool wall to propel themselves forward?
The wall pushes back against the swimmer with the same amount of force.
The wall pushes back against the swimmer with twice as much force.
The wall pushes back against the swimmer with half as much force.
The wall does not push back against the swimmer; the force of the swimmer’s push is what propels them forward.
A box is acted upon by two forces from opposite directions. What is the net force applied to the box?
10 N
20 N
30 N
40 N
Choose the answers that best describe what is happening in the image.
The forces are balanced
The forces are unbalanced.
The system is stable.
The system is unstable.
A person is using a pulley to pull on a bell. Calculate the net force on the bell using the measurements listed in the diagram.
20 N up
20 N down
80 N up
80 N down
What does this measure
force
weight
mass
Two workers at a furniture store are moving a couch to another display. One worker pushes with a force of 150 N and the other pushes with a force of 180 N in the same direction.
What is the net force exerted on the couch?
30 N
150 N
180 N
330 N
What is the net force exerted on the student?
0 N
40 N
80 N
160 N
A pet owner takes his dog out in the morning for exercise. The dog is happy to be out and pulls forward on his leash at a force of 100 N. The owner keeps the dog close by gently pulling backward on the leash with a force of 110 N.
Calculate the net force on the leash.
110 N backward
210 N forward
10 N backward
0 N
According to Newton’s Third Law, what happens when a runner pushes back against the ground to propel themselves forward?
The ground simultaneously exerts the same amount of force on the runner.
The ground simultaneously exerts twice as much force on the runner.
The ground simultaneously exerts half as much force on the runner.
The ground does not exert any force on the runner.
A student puts a block of wood on a table as shown on figure below. She wants to measure the force needed to move the block to the left.
Which one of the following instruments should be used?
(SPE/2018/Q19)
A
B
C
D
One of the effects of forces is changing the direction of a moving object. Study the list below:
Which items in the list are also the effects of forces on an object? (SPE/2016/Q18)
I, II, III and IV
I, II and III only
I, II and IV only
I and II only
A ball is rolling towards the right. A force is applied on the ball in the opposite direction as shown in figure below. Which of the following effects could happen to the ball? (SPE/2017/Q20)
(i), (ii)
(ii), (iii)
(i), (ii), (iii)
(ii), (iii), (iv)
Which of the following is measured in newtons (N)?
Size
Mass
Energy
Friction
Figure below shows two identical blocks of wood, P and Q. Two sets of forces are applied to move the blocks of wood. In which direction will P and Q move? (SPE/2012/Q12)
Both P and Q will move to the right.
P will move to the right while Q will move to the left.
P will move to the right while Q will not move.
P will not move while Q will move to the right.
A student stands with both feet on a weighing scale in order to measure his weight. The reading on the scale is 500N. He lifts one foot off the scale and keeps it lifted.
What is the new reading on the scale? (SPE/2020/Q15)
0 N
250 N
500 N
1000 N
If these boys are pulling with the same amount of force. What will happen?
The boy in blue will win.
They will not move at all.
The boy in red will win.
Both will fall down.
In this force diagram, which way will the van move?
Upward
To the left
To the right
Downward
What is the unit of force in the International System of Units (SI)?
Newton
Joule
Watt
Pascal
Which instrument is commonly used to measure force?
Thermometer
Barometer
Dynamometer
Ammeter
If a force of 10 N is applied to a 2 kg object, what is the acceleration of the object? (Use the formula F=ma )
5 m/s²
10 m/s²
20 m/s²
2 m/s²
A car is moving with a constant velocity. What can be said about the net force acting on the car?
Net force is zero
Net force is equal to the weight of the car
Net force is equal to the frictional force
Net force is equal to the applied force
Which of the following scenarios is an example of balanced forces?
A book resting on a table
A car accelerating on a highway
A ball falling from a height
A rocket launching into space
A spring scale reads 5 N when a weight is hung from it. What force is the spring scale measuring?
Gravitational force
Magnetic force
Frictional force
Electrostatic force
In an experiment, a force of 15 N is applied to a block, causing it to move at a constant speed. What does this indicate about the frictional force acting on the block?
Frictional force is 15 N
Frictional force is greater than 15 N
Frictional force is less than 15 N
Frictional force is zero
What happens to the force of gravity between two objects if the distance between them is doubled?
It becomes four times stronger
It becomes twice as strong
It becomes half as strong
It becomes one-fourth as strong
