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WorksheetsReview (Grade 8)
Total questions: 25
Worksheet time: 17mins
What is a force?
A push or a pull
The constant motion of an object
The acceleration of an object
The mass of an object
Which of these is evidence that an unbalanced force is acting on an object?
The mass of the object is changing
The object continues moving in a straight line
The object remains at rest
The motion of the object is changing
Newton's First Law States........
Objects at rest tend to stay at rest unless acted on by an outside force.
Objects accelerate often and it is difficult to know when or how they will accelerate.
Objects in motion tend to stay in motion unless acted on by an outside force.
Both A & C
What is inertia?
An object that is accelerating
Gravitational force
An objects tendency to stay at rest or in motion
An unbalanced force
Inertia depends on __________.
Weight
Velocity
Mass
Acceleration
Newton's second law states.....
If there is more mass then there is more acceleration
An object at rest wants to be in motion
Force = Mass x Acceleration
The force exerted on an object is not related to mass or acceleration
What formula is used to calculate force?
Acceleration = Force x Mass
Force = Mass x Acceleration
Work = Force x Distance
Mass = Force + Acceleration
An object with a mass of 100 kg is observed to accelerate at the rate of 5 m/s2. Calculate the force required to produce this acceleration.
20N
500 M/S
500 Kg
500N
A force of 40 N acts upon a 2 kg block. Calculate the acceleration of the object.
20 m/s2
20 m/s
80 m/s2
80 m/s
Newton's third law states.......
For each action there is a larger reaction associated with it.
None of these choices
For each action there is an equal and opposite reaction.
For each action there is a smaller reaction associated with it.
Stacy is rowing a boat. She wants the boat to move forward. According to Newton's Third Law, in which direction should she move her paddle in the water?
Backwards
Above her head
Forward
East
