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WorksheetsForces
Total questions: 26
Worksheet time: 14mins
Identify which of the following statements is Newton's 1st law of motion.
The acceleration of an object is directly proportional to the force applied and inversely proportional to its mass.
Whenever one object exerts a force on a second object, the second object exerts a force on the first object of equal magnitude in the opposite direction.
An object remains at rest or in uniform motion in a straight line unless acted upon by an external force.
Identify which of the following statements is Newton's 2nd law of motion.
The acceleration of an object is directly proportional to the force applied and inversely proportional to its mass.
Whenever one object exerts a force on a second object, the second object exerts a force on the first object of equal magnitude in the opposite direction.
An object remains at rest or in uniform motion in a straight line unless acted upon by an external force.
Identify which of the following statements is Newton's 3rd law of motion.
The acceleration of an object is directly proportional to the force applied and inversely proportional to its mass.
Whenever one object exerts a force on a second object, the second object exerts a force on the first object of equal magnitude in the opposite direction.
An object remains at rest or in uniform motion in a straight line unless acted upon by an external force.
Which of Newton's laws of motion is best exemplified in this animated GIF?
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Which of Newton's laws of motion is best exemplified in this animated GIF?
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
A force of 20 N is applied to an object of mass 5 kg in order to keep it moving at constant velocity against a constant resistive force. Which of the following gives the net force exerted on the object?
0 N
4 N
20 N
100 N
In which one of the following situations are the forces acting on the object balanced?
A skydiver reaches terminal velocity and falls at constant speed 55 m/s.
While falling freely a ball experiences a constant downward acceleration of 9.8 m/s².
A car decelerates at a constant rate of 4 m/s² until it comes to rest.
An airplane makes a turn moving at a constant speed of 120 m/s.
An identical force F is applied to two objects with different masses. Indicate below which mass experiences a greater acceleration.
The one with more mass
The one with less mass
They both experience an equal acceleration
Cannot be determined
A 12 newton net force accelerates an object at 4 m/s². Which of the following gives the mass of the object?
0.33 kg
3 kg
8 kg
48 kg
A 1 000 kg car accelerates on a straight, flat, horizontal road with acceleration 0.3 m/s². The driving force F on the car is opposed by a resistive force of 500 N. Which of the following gives the magnitude of the net force on the car?
200 N
300 N
500 N
800 N
To move forward, a swimmer pushes the water backwards. Which one of Newton's laws is best exemplified by this situation?
Newton's 1st law of motion
Newton's 2nd law of motion
Newton's 3rd law of motion
Newton's law of gravity
An apple falls to the earth. One of the forces involved in this interaction is the force of the Earth pulling the apple down. What is the other force?
The Earth pulls the apple up.
The apple pulls the Earth up.
The apple hits the ground.
The apple accelerates.
A bowling ball collides with a pin. Which of the following pictures correctly shows the force pair involved in this interaction?
Two children lock hands and pull themselves together. During this interaction, which child is pulled with a greater force?
The child in the gray shirt (on the left) is pulled with more force.
The child in the yellow shirt (on the right) is pulled with more force.
The children are both pulled equally.
The net force on each child is zero.
During an experiment, a student pulls a block across the rough surface of a table along a straight line path. A spring scales shows that the applied force is 12 newtons, as shown in the picture.
From the experimental data, the student determines that the net force on the block was 8 newtons. What was the magnitude of the frictional force?
4 N
8 N
12 N
20 N
During an experiment, a student pulls a block across the rough surface of a table along a straight line path. A spring scales shows that the applied force is 12 newtons, as shown in the picture.
Suppose the student wanted to pull the block so that it moved with constant velocity. How would she need to change the force she applies on the block?
She would need to pull with a greater force.
She would need to pull with less force.
The block was already moving with constant velocity.
It would be impossible for the block to move with constant velocity.
An object initially moving to the left at constant velocity has several forces applied to it, as shown.
What is the net force on this object?
-20 N
-5 N
5 N
35 N
An object initially moving to the left at constant velocity has several forces applied to it, as shown.
Which of the following correctly describes the resulting motion of the object?
The object speeds up while moving to the right.
The object slows down while moving to the right.
The object speeds up while moving to the left.
The object slows down while moving to the left.
Mass differs from weight in that
all objects have weight but some lack mass.
the mass of an object is always less than its weight.
the mass of an object does not depend on gravity.
the mass of an object will never change under any circumstances.
A person has a mass of 60 kg while standing on the surface of Earth where the acceleration of gravity is 10 m/s². The person then travels to the surface of Mars where the acceleration of gravity is 4 m/s².
What is the mass of the person while standing on Mars?
60 kg
600 kg
24 kg
240 kg
A person has a mass of 60 kg while standing on the surface of Earth where the acceleration of gravity is 10 m/s². The person then travels to the surface of Mars where the acceleration of gravity is 4 m/s².
Which of the following gives the person's weight on Mars?
24 N
60 N
240 N
600 N
The picture shows an airplane flying due north into an eastward blowing crosswind.
The cross wind causes the airplane's
speed to increase.
speed to decrease.
path of motion to curve.
inertia to decrease.
A ball rolls along a horizontal track at constant speed before entering a vertical loop. The picture shows four possible directions for the velocity and net force when the ball is moving through the circular loop. Which of the following gives the direction of the velocity of the ball and the net force acting on the ball?
velocity is direction 1, net force is direction 4
velocity is direction 1, net force is direction 2
velocity is direction 3, net force is direction 4
velocity is direction 3, net force is direction 2
An object is moving at constant speed along a straight-line path when a force F is applied at some arbitrary angle θ, meaning the force could be applied at any angle. Which of the following quantities must change?
the speed of the object
the direction of motion
the velocity of the object
the inertia of the object
The picture shows a satellite moving in a circular orbit around the Earth at constant speed.
Which of the following correctly explains whether or not the satellite is accelerating?
The speed of the satellite is constant. An accelerating object must experience a change in speed over time. Therefore, the satellite is not accelerating.
Even though the speed of the satellite is constant, the velocity is not. Therefore, the satellite must be accelerating since its direction of motion is changing.
Since the satellite moves in a circle at constant speed, a constant tangential force acts on the satellite. Therefore, the satellite must be accelerating.
The satellite is in uniform circular motion. Uniform means not changing, therefore the satellite is not accelerating.
The picture shows the interaction between a soccer ball and a player's foot, and the magnitude and direction of the resulting acceleration of each object.
During this interaction, upon which object is a greater force exerted?
A greater force is exerted upon the soccer ball.
A greater force is exerted upon the player's foot.
An equal force is exerted upon both objects.
There is not enough information to decide.
