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Vocabulary
Forces
Friction
Newton's Laws
Universal Forces
100
A push or pull on an object
What is force
100
This is the force that affects your weight.
What is gravity.
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 forces are equal in size and opposite in direction
What is a force pair
200
The difference between these two measures is that one shows direction and the other does not.
What is velocity and speed.
200
The unit of mass used in Newton's second law of motion.
What is the kilogram
200
This type of friction explains why ball bearings are used in wheels.
What is rolling friction
200
The gravitational force exerted on an object
What is weight
200
The ground and your feet when jumping up to dunk a basketball.
What is a force pair
300
Can change the speed or direction of an object
What is an unbalanced force.
300
This force eventually stops all moving objects.
What is friction.
300
the force between two surfaces in contact that keeps them from sliding when a force is applied.
What is static friction
300
Acceleration is in the same direction as net force T or F
What is True
300
All objects are attracted to each other, and the force of attraction depends upon their masses and the distance between them.
What is the law of universal gravitation
400
The tendency of an object to resist a change in its motion.
What is inertia
400
This force keeps objects moving in a circle
What is centripetal force
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
The unit used for the magnitude of a force
What is the newton
500
The total of all forces acting on an object is called this.
What is net force.
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
The factors needed to compute acceleration.
What is net force and mass