Kinematics
What is change in position over time?
Velocity
Prompt: What is the downward pull on a projectile?
Gravity
Prompt: What is a push or pull on an object?
Force
What is the energy of motion?
Kinetic energy
What is mass times velocity?
Momentum
What is the total length of a path traveled?
Distance
Prompt: What stays the same for horizontal motion in a projectile?
Horizontal velocity
What law states that objects stay in motion unless acted on by a net force?
Newtons first law
What is the equation for work?
Force times distance
What factor gives a heavy truck more momentum than a small car at slow speed?
Response: Mass
Mass
What is a constant rate of change of velocity?
Acceleration
What is the vertical velocity at the top of a projectile path
0
Prompt: What law states that force equals mass times acceleration?
Newtons second law
Prompt: What is the equation for power?
Work divided by time
What principle says total momentum stays the same in a closed system?
Conservation of momentum
What is the speed of a car that moves 20 meters each second for 4 seconds?
20 meters per second
What is the time for a ball with an upward speed of 8 meters per second to reach the top?
About 0.8 seconds
Prompt: What is the acceleration when a 10 newton force acts on a 2 kilogram object?
5 meters per second squared
What is the work done by a 50 newton force moving an object 4 meters?
200 joules
: What is the momentum of a 4 kilogram object moving at 3 meters per second?
12 kilogram meters per second
Prompt: What is the acceleration of a runner who reaches 8 meters per second in 4 seconds from rest?
2 meters per second squared
Prompt: What is the initial vertical speed of a projectile launched at 20 meters per second at 30 degrees?
10 meters per second
Prompt: What law states that forces between two objects are equal and opposite?
Response: Newtons third law
: What is the speed of a 10 kilogram object with 400 joules of kinetic energy?
d
8.9 meters per second
What type of collision has objects stick together with total momentum unchanged?
Inelastic collision