Describing Motion
What is speed plus the direction?
Velocity
What is Free Fall?
When an object only experiences the force of gravity
Name 2 types of force
Friction, tension, Gravity, Applied force, Normal force,
What is Momentum?
Mass in motion
What is power?
The rate at which work is done?
What is the rate of change of velocity?
Acceleration
What does g stand for?
Acceleration due to gravity
What force is always in a free-body diagram?
Gravity
What is equal to the change in momentum?
Impulse
Work: W = Fd
What is the change in a person's position?
Displacement
A ball is thrown upwards. At its Maximum Height, what is its Velocity?
zero
What is Newton's first law?
An object that is in motion stays in motion unless acted open by an external force.
vector
What is the unit of Work?
J (Joules)
What is the length of the path traveled?
Distance
While in Freefall, Acceleration is independent of...
mass
What is Newton's second law?
Net force = Mass x Acceleration
Momentum symbol
p
What are the units of Power?
W (Watts)
A person starts at a Position of 0m. They walk 5 meters to the right and then 3 meters to the left. What Displacement did they travel? Don't forget to include units.
2m to the right
What is an object that is moving through the air?
A Projectile
What is Newton's third law?
Every action has an equal and opposite reaction
An egg is thrown against the wall. Why does this break the egg?
The shorter time will result in a larger force
What type of work do you do if the Force and Displacement are in opposite directions?
Negitive Work