Two things that are used to find impulse
What is force and time?
You can increase the potential energy of a bow and arrow by
What is pulling the arrow back?
To calculate average speed you must
What is divide the total distance by the total time?
The unit of work
What is a Joule?
A car travels in a straight line at a constant speed of 30 m/s. What is its acceleration?
What is 0 m/s?
An object with momentum must have these two things
What is mass and velocity?
This law states that energy can not be made or destroyed
What is Conservation of Energy?
What would constant speed look like on a distance v time graph?
What is a vertical line?
The formula for work
What is force*distance?
The tendency of objects to resist change in motion
What is inertia?
If the velocity of an object doubles, the momentum
What is doubles?
A volleyball and bowling ball are rolling down a slope. The ball with the greatest kinetic energy is
What is the bowling ball?
A free body diagram of a box being pushed to the right across a rough surface (draw on the board)
What is Normal (up), Gravity (down), Friction (left), Applied (right)?
The rate at which work is done
What is power?
The speed of sound in air
What is 343 m/s?
If a bug and a car collide, which one experiences the greater force
What is they both experience the same amount of force?
The formula for gravitational potential energy
What is mass*gravity*height?
An object has a negative acceleration, this means it is
What is slowing down?
You do 2000 J of work in 5 seconds. Your work is ...
What is 400 watts?
The opposition to alternating current in a circuit
What is impedance?
The impulse of a 25 N force applied for 3 seconds
What is 75 N*s?
The formula to find kinetic energy
What is 1/2mv²?
Another word for distance in a certain direction
What is displacement?
The formula for power
What is Work/Time
A car starts from rest at the top of a hill and accelerates down the incline at 3m/s. Halfway down the hill (in terms of distance), the car deploys its brakes, decelerating uniformly at 2m/s2, and it comes to a stop at the bottom of the hill. If the hill is 200m long:
1. 24.5 m/s
2. 8.17 s