Acts in the direction opposite to the motion of the object.
What is Sliding Friction
100
A push or a pull.
What is Force
100
If the net force acting on an object is zero, the object remains at rest, or if the object is already moving, continues to move in a straight line with constant speed.
What is Newton’s 1st Law
100
An object is the size of the gravitational force exerted on an object.
What is Weight
100
Occurs any time an object speeds up, slows down, or changes its direction of motion.
What is Acceleration
200
Occurs when an object rolls across a surface.
What is Rolling Friction
200
When an object moves in circular motion, the net force on the object.
What is Centripetal Forces
200
Forces always act in equal but opposite pairs.
What is Newton’s 3rd Law
200
The tendency of an object to resist a change in its motion.
What is Inertia
200
A situation of state of affairs that doesn’t change.
What is Constant
300
The type of friction that prevents an object from moving when a force is applied.
What is Static Friction
300
Two or more forces exerted on an object, and if there effects cancel each other and they do not change the object’s velocity.
What is Balanced Forces
300
If the net force acting on an object is zero, the object remains at rest, or if the object is already moving, continues to move in a straight line with constant speed.
What is Newton’s 1st Law
300
The amount of matter in an object.
What is Mass
300
Acts in the direction opposite to the motion of the object.
What is Sliding Friction
400
The force that brings nearly everything to a stop.
What is Friction
400
If the net force is not zero.
What is Unbalance Forces
400
The acceleration of an object equals the net force divided by the mass and is in the direction of the net force.
What is Newton’s 2nd Law
400
When air resistance balances the force of gravity, the object falls at a constant speed.
What is Terminal Velocity
400
The force that causes Earth to orbit the Sun and the Moon to orbit Earth.
What is Gravity
500
The force that causes Earth to orbit the Sun and the Moon to orbit Earth.
What is Gravity
500
The combination of all the forces acting on an object.
What is Net Force
500
Forces always act in equal but opposite pairs.
What is Newton’s 3rd Law
500
The point in an object that moves as if all the object’s mass were concentrated at that point.