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Vocabulary
Forces
Friction
Newton's Laws
Old Review
100
A push or pull on an object
What is force
100
The force of gravity acting on an object is its:
What is weight
100
This type of friction occurs when a boat travels through water.
What is fluid friction.
100
Which of Newton's laws tells us that resting objects stay at rest unless acted on by an outside force?
What is Newton's first law
100
The formula for speed is
What is the distance over time.
200
The sum of all the forces acting on an object
What is net force
200
Name the SI unit of force
What is the Newton
200
This type of friction explains why ball bearings are used in wheels.
What is rolling friction
200
The equation that sums up Newton's second law:
What is F = M * A
200
The slope of a distance vs time graph indicates the object's
What is speed
300
The force that opposes the motion of objects that touch as they pass
What is friction
300
What happens when an unbalanced force acts on an object?
What is the object accelerates
300
What happens to the fluid friction as a boat's speed increases?
It increases
300
According to Newton's second law, this is the only way to double an object's acceleration if you cannot alter its mass.
What is apply double the force
300
The two characteristics of a vector is
What is the magnitude and direction
400
The tendency of an object to resist change in its motion
What is inertia
400
This type of friction is the force you have to overcome in order to move objects
What is static friction.
400
Which type of friction is keeping you from falling out of your chair?
What is static friction
400
Briefly summarize Newton's Third Law
What is for every action there is an equal and opposite reaction. (accept suitable answers)
400
What happens to your weight as you move away from Earth, and why?
What is it decreases because gravity decreases.
500
A type of motion that includes both the force applied and a downward force due to gravity
What is projectile motion
500
The two forces acting on a falling object are_____ and _____.
What is gravity and air resistance
500
This type of friction makes it difficult to push a table across the floor.
What is sliding friction
500
According to Newton's second law, the acceleration of an object equals the net force acting on the object divided by what?
What is its mass
500
True or false: you are accelerating if you change directions.
What is true