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 universal force that acts only on protons and neutrons in the nucleus of an atom
What is the strong nuclear force
200
The difference between these two measures is that one shows direction and the other does not.
What is velocity and speed.
200
Force is written as kg x m/s. This unit of measure is called what?
What is the Newton, N
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
This force is powerful, but acts on a short range over all particles.
What is the weak nuclear force
300
When you use LC East to explain to someone how to get to the bowling alley you are using the school as this.
What is a reference point.
300
This force eventually stops all moving objects.
What is friction.
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
Which force explains why two positively charged particles will repel?
What is the electric (or electromagnetic) force
400
List the three ways you can show acceleration.
What is speeding up, slowing down and changing direction.
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
This is the property of matter that makes it resist change in its position.
What is inertia.
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
Which universal force is most effective over long distances?
What is gravitational force
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