Motion
Net Force
Types of Forces
Units
Mass, Weight, and Gravity
100

This describes how fast something is going

Speed

100
What is the sum of all forces acting on an object?

Net Force

100

This type of Force is only found when a string, rope, or cable is involved

Tension

100

Identify the variable with the unit: km

distance

100

the amount of matter (or stuff) in an object

mass

200

This describes how fast an object is moving AND which direction it is traveling

Velocity

200

Balanced Forces have a Net Force of what?

Net Force = 0

200

This type of Force is actually an acceleration

Gravity

200

Identify the variable with the unit: m/s

speed

200

the force of an object due to gravity

Weight

300

An object is doing this if it

-Speeds up

-Slows down

-changes direction

Accelerating

300

Unbalanced Forces cause this

Acceleration

300

This type of Force is the reason why parachutes work so well.

Air Resistance

300

Identify the variable with the unit: m/s, North

velocity

300

9.8 m/s2

Gravity on Earth

400

This is the equation to calculate acceleration

V- Vi

    t

400

Why do we use arrows to show forces?

Because forces have both size AND direction

400

This type of Force always opposes motion and is PARALLEL to the surface

 Friction

400

Identify the variable with the unit: m/s/s

acceleration

400
the force of attraction between two objects

Gravity

500

A car is initially at rest and speeds up for 10 seconds until it reaches a speed of 30 m/s. What is the car's acceleration?

3 m/s2

500

Calculate the net force: Gravity pulls you down with a force of 200 N while air resistance pushes on you with a force of 140 N.

60 N, down

500

This type of Force is always PERPENDICULAR to the surface

Normal

500

Identify the variable with the unit: kg*m/s2

Force (also known as Newtons)

500

What is Mr. Hopkins' weight if he has a mass of 90.8 kg?

890 N