Unit 2 vocab Contact foces

Front

Definition: A force exerted when two objects touch (e.g., friction, elastic, applied, normal).

Back

Contact Force

Front

Definition: To push or pull

Back

force

Front

Definition: a law stating an object at rest stays at rest and an object in motion continues in a straight line at constant speed.

Back

Newtons 1st Law of motion

Front

Definition: Tendency of a moving object to keep moving in a straight line or an object at rest to stay at rest

Back

inertia

Front

Definition: Two equal forces acting in opposite directions result in no movement or change in velocity.

Back

Balanced forces

Front

Definition: Forces causing an object to change motion (speed/direction)

Back

Unbalanced Forces

Front

Definition: a law stating an object's acceleration is based on its mass and net force applied (more mass = less acceleration; more force = more acceleration)

Back

Newton's 2nd Law of motion

Front

Definition: amount of matter in an object

Back

mass

Front

Definition: change of speed (velocity) per unit time. Acceleration due to gravity is 9.8 m/s² for each second an object falls.

Back

Acceleration

Front

Definition: a physical law stating every action has an equal and opposite reaction (2 objects)

Back

Newton's 3rd Law of motion