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WorksheetsCombined Newton's Laws
Total questions: 20
Worksheet time: 11mins
According to Newton's first law of motion, what is required to change an object's motion?
An unbalanced force
A balanced force
A bonus force
A negative force
You can ride a skateboard downhill without pushing off. What provides the unbalanced force?
mass
acceleration
gravity
wind
A skateboarder hits a rough piece of pavement and comes to a sudden stop. What provides the unbalanced force?
gravity
friction
air resistance
mass
Which direction will the tug of war battle move?
towards the right
the forces are balanced so it will not move
up
to the left
In which two situations are the forces balanced?
object in a constant uniform motion
object at rest
object increasing in velocity
object decreasing in velocity
Motion will always go in the direction of ___.
gravitational pull
friction
a net force
mass
Select all the correct variations of the mathematical definition for Newton's second law.
F = ma
m = F/a
a = F/m
a/m = F
According to Newton's second law, the amount of force required to accelerate an object depends on the object's ___.
length
size
density
mass
According to Newton's second law, there is an inverse relationship between what two variables?
force and mass
force and acceleration
mass and acceleration
action force and reaction force
According to Newton's second law, if I triple the force on an object, what happens to acceleration?
It is divided by 3
It stays the same
It triples
It increase by 3 m/s/s
A 10 Kg mass is accelerated at 5 m/s/s when 50 N is applied to it. Identify the force in this scenario.
10 Kg
5 m/s/s
50 N
65
Select all the examples of acceleration.
A car's velocity increases from 10 m/s to 20 m/s
A car's velocity decreases from 10 m/s to 5 m/s
A car going north turns right and travels east
A car travels in a straight path at a constant 50 m/s
What happens when a 10 N force is applied to a 2 Kg mass?
It accelerates at 5 m/s/s
It comes to a stop
It accelerates at 20 m/s/s
It accelerates at 8 m/s/s
How much net force is needed to accelerate a 10 Kg object at 2 m/s/s
12 N
5 N
8 N
20 N
The soccer player is about to kick the soccer ball with a force of 10 N. How will the force the ball exerts on their foot compare?
It will be the same (10 N)
It will be less ( < 10 N)
It will be greater ( > 10 N)
It will be zero because the forces cancel
A person stands on the earth's surface pushing down with a force equal to their weight. How does the reaction force of the earth compare to that of the person?
It is greater than that of the person
The earth produces no reaction force
It is equal to the force of the person's weight
It is zero
Astronaut A and astronaut B are floating around in their space capsule. They have equal mass. If astronaut A pushes astronaut B with a force of 10 N, how will their motion compare?
Astronaut B will float off to the right and astronaut A will remain still
They have equal mass so there will be no motion
Astronaut A will float off to the right and astronaut B will remain still
Both astronauts will float away from each other because the force has an equal effect on both of them.
A horse pushes against the ground in order to pull a wagon down the road. According to Newton's third law, the earth pushes back on the horse with equal force. Why don't the forces cancel each other out?
They action and reaction forces act on different objects
The action force is greater than the reaction force
The mass of the wagon plus the horse is greater than the mass of the ground underneath them
The horse produces an unbalanced force on the ground
The graph shows the change in motion of a car. Which of the following describes the motion of the car indicated by the green line?
The car maintains the same velocity
The car is speeding up
The car is slowing down
The car is stopped
The graph shows the change in position for a students walking through town. What is happening between points B and C?
The person is running
The person is stopped
The person is speeding up
The person is slowing down
