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Motion
Forces
Newton's Laws
Friction
Miscellaneous
100
How far something travels in a certain amount of time.
What is speed
100
A push or pull on an object.
What is a force
100
The tendency of an object to stay still or stay in motion.
What is inertia
100
How friction makes your hands feel after you have rubbed them together.
What is warm
100
This is the same for an astronaut on Earth and the moon.
What is mass
200
An increase or decrease in speed or a change of direction.
What is acceleration
200
The force that causes an object to accelerate the closer it gets to Earth.
What is gravity
200
Newton's Third Law states that every action force has this.
What is an equal and opposite reaction
200
The type of friction that causes the palm of your hand to be pushed back when you stick it out of the car window.
What is air resistance
200
30 mi/hr north is a measure of this.
What is velocity
300
The product of an object's mass and speed.
What is momentum
300
What forces always work in.
What is pairs
300
Objects in motion stay in motion and objects at rest stay at rest unless acted upon by this.
What is a force
300
The way engineers of cars reduce air resistance.
What is streamlining
300
The closer objects are, their attraction is _________________.
What is greater
400
The difference between speed and velocity.
What is direction
400
The force that occurs between two surfaces moving in opposite directions.
What is friction
400
Inertia causes this to happen to a passenger in a car when the car suddenly stops.
What is the person continues moving forward until stopped by a force
400
To do this to friction, we can put gravel on top of an icy sidewalk.
What is increase
400
The pull of gravity between two objects depends on the ______________ and _______________ between the objects.
What is mass and distance
500
Your speed if you traveled 9 miles in 3 hours.
What is 3 mi/hr
500
The force that causes people to weigh more on the earth than on the moon.
What is gravity
500
The man who wrote laws for inertia and action/reaction forces.
What is Newton
500
To reduce friction, you could add this to a machine.
What is grease or oil
500
A crumpled sheet of paper would fall faster than a a flat sheet of paper because it has less of this.
What is surface area