Gravity causes all objects to accelerate toward Earth at a rate of _______.
What is 9.8 m/s squared?
100
An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless....
What is it acted on by an unbalanced force.
100
The acceleration of an object depends on
What is the mass of the object and the amount of force applied?
100
Action force and Reaction force
What are force pairs?
100
Momentum is a property of ______ objects.
What is moving?
200
Projectile motion has two components.
What is horizontal and vertical motion?
200
The total net force acting on an object at rest.
What is 0N?
200
Acceleration of an object increases when ____ increases
What is force?
200
Whenever one object exerts a force on a second object...
What is the second object exerts an equal and opposite force on the first?
200
Momentum is calculated by...
What is multiplying the mass of an object by the object’s velocity?
300
centripetal force (definition)
What is needed to keep objects in circular motion
300
Objects will continue to move forever with the same velocity unless acted upon by a...
What is unbalanced force?
300
The relationship of acceleration (a) to mass (m) and force (F). (equation)
What is a= F/m or F= m x a
300
If a force is exerted, another force occurs that is equal in size and ...
What is opposite in direction?
300
When two or more objects collide, momentum may be transferred, but the total amount of momentum does not change. (what law?)
What is the law of conservation of momentum?
400
Projectile motion (definition)
What is the curved path an object follows when thrown or propelled near the surface of Earth?
400
Another name for Newton's first law
What is the law of inertia?
400
The acceleration of an object is always in the same ______ as the force applied.
What is direction?
400
Force pairs _____ act on the same object.
What is DO NOT?
400
Two ways that objects may interact after a collision.
What is stick and bounce?
500
Objects in orbit appear to be weightless because...
What is free falllllllllllll
500
Objects with greater mass have greater...
What is inertia?
500
Exert a small force with a small mass to move it but exert a _____ force on a ______ mass to move it.
What is Larger?
500
When you let go of a ball and it falls toward the Earth, the Earth gives off an equal reaction force. Although the mass of the Earth is so _____ the force is hard to observe.