VELOCITY
Speed in a given direction

55 N Right
For every action there is ...
an equal but opposite reaction
What type of energy is shown in the picture?

Kinetic Energy
What is the acceleration of gravity on Earth?
9.8 m/s2
NET FORCE
The sum of all of the forces acting on an object
A man ran 60 meters in 5 minutes. What was his speed?
12 m/min
The second law states that an object with great mass and great acceleration requires _____ _____.
more force
What two factors affect potential energy?
Mass and Height
Choose a point of increasing potential energy

4
FRICTION
The force two surfaces exert on one another
Calculate the velocity of a seal swimming 3000 meters from Antarctica to Africa in 300 minutes.
10 m/min NORTH
The need to wear a seatbelt is because of which law?
Newton's 1st Law
Energy can be transferred in the form of...
Heat OR Work
What does it mean if your acceleration is zero?
You have constant speed/velocity
WEIGHT
The amount of gravity exerted on an object
Calculate the force needed to move of a 200 kg desk at an acceleration of 5 m/s2.
1000 N
Which law is best represented here?

Newton's 3rd Law
What best explains why the total energy at each point in the roller coaster will always be the same?

The law of conservation of energy says energy cannot be created or destroyed, just transferred.
What type(s) of friction is/are evident here?

Static and Rolling Friction
INERTIA
The tendency of an object to resist a change in motion
Calculate the acceleration of a train going from 700 m/s to a complete stop in 35 seconds.
-20 m/s2
If you want a ping pong and a bowling ball to have the same amount of force, what needs to happen?
increase the acceleration of the ping pong
OR
decrease the acceleration of the bowling ball
A soccer ball with a mass of 0.45 kg is kicked and moves with a speed of 12 m/s.
32.4 J
What are all of the ways that acceleration can be changed?
Speeding up
Slowing down
Changing direction
If you quadruple your velocity, what happens to your KE?
Be specific how it increases or decreases
It becomes 8x greater