Forces
Gravity
Motion
Laws of Motion
100
Four students roll basketballs across four surfaces with the same amount of force. On which surface will the ball most likely travel the farthest? a) grass b) carpet c) tile floor d) sandy path
What is c) tile floor
100
Causes change in daily tides
What is moon's gravity
100
The rate at which velocity changes
What is acceleration
100
This object will have the greatest acceleration if each is thrown with the same force. a) baseball b) tennis ball c) bowling ball d) table tennis ball
What is d) table tennis ball
200
What do you know about two opposite forces that don't cause an object to move?
They are the same size
200
The force that keeps the moon from shooting straight out into outer space.
What is earth's gravity
200
The difference between speed and velocity
What is velocity is the speed of an object in a particular direction
200
This causes a rock sitting on the ground to remain in the same place unless a force acts on it
What is inertia
300
How force is described
What is size and direction
300
Earth's gravitational force will have the greatest affect on a 160 lb. person: a) in an airplane b) standing at sea level c) walking on the Moon d) on top of Mt. Everest
What is b) standing at sea level
300
The speed of a runner who runs 4 km in 30 minutes.
What is 8 km/hr
300
The formula for acceleration
What is force/mass
400
Tool used to measure force
What is a spring scale
400
Why can you feel and see the effect of Earth's gravitational pull on you, but you cannot feel or see the effect of Mr. Umble's gravitational pull on you?
What is the earth has much greater mass than Mr. Umble and the amount of gravitational pull has to do with the amount of mass and how close an object is.
400
Description of motion depends on this
What is frame of reference
400
The kind of force a baseball exerts on a bat when someone hits it.
What is equal and opposite.
500
Type of friction that makes it difficult to start moving a box full of books across the floor.
What is static
500
An object weighs 36 kg on earth. How much will it weigh on the Moon?
6 kg
500
Speed of an object at a given moment
What is instantaneous speed
500
Used to find the force needed to stop a moving object
What is momentum
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