Answer the questions about force, motion, Newton’s laws, and momentum. Show your reasoning on scratch paper as needed, then select the best answer for each question.
Donald's dinosaur walks 10 meters. It takes him 5 seconds. What is the dinosaur's speed?
What is happening during time A (the red line)?
A roller skater starts at a speed of 2 m/s and then increases her speed to 10 m/s in 3.0 s. What is her acceleration?
A car accelerates at a rate of 3 m/s2. If it starts at a velocity of 7 m/s and ends at a speed of 25 m/s, how much time does it take?
Which type of force produces a change in motion?
What is the net force on the car in the picture?
A person is pushed forward into their seatbelt when a car stops. Why?
Objects with greater ________ also have greater inertia.
A sled slides down a hill, reaches the level surface and eventually comes to a stop. Why does the sled stop?
If you increase the mass of an object, its acceleration
If a rolling chair with a mass of 10 kg accelerates suddenly at 15 m/s2, how much force was applied to the chair?
Ashly is playing volleyball. She hits the ball with a force of 10 N, and it accelerates at a rate of 10 m/s2. What was the volleyball's mass?
If a 5 kg box had a force of 50 N applied to it, what would its acceleration be?
What is defined as a push or pull?

What will happen to this box?
The dinosaur runs at a speed of 3 m/s. If he runs for 10 seconds, how many meters will he run?
The dinosaur runs at a speed of 3 m/s. If he runs 180 meters, how many seconds will it take him?
What is happening during time B (the blue line)?
Time C is 30 min. What is the average speed during time C (the green line)?
Why?