Types of Force
Push or a pull that can make an object move, stop, or change direction
Force
How fast or slow an object moved over a certain distance
Speed
Force that opposes motion between 2 surfaces that are touching
Friction
Total distance an object travels divided by the total time it took
Average speed
Invisible force that pulls all objects toward center of Earth
Gravity
To calculate speed, divide distance by this measurement
Time
Measure of matter in an object that stays the same anywhere in the universe
Mass
Applying the brakes on a bicycle uses this force to bring it to a stop
Friction
Force that acts at a distance between magnets and magnetic materials
Magnetism
Change in speed or direction, whether speeding up, slowing down, or turning
Acceleration
Friction force that air exerts on falling objects, like a parachute
Drag/air resistance
If you kick a soccer ball into space far away from gravity and friction, it will do this forever
Move at a constant speed in a straight line
When 2 equal forces act on an object in opposite directions, resulting in no movement
Balanced forces
Speed measured with a specific direction
Velocity
Tendency of an object to resist a change in motion
Inertia
A runner finishes a 100-m dash in 10 s. What is the average speed?
10 m/s
Electrical force is a ___________ force
Noncontact
On a distance-time graph, a completely flat horizontal line means an object is...
Standing still/not moving
Newton's third law
Every action has an equal and opposite reaction
An instrument typically used to measure weight or pulling force in Newtons
Spring scale