1. Unit 6 Review
Mrs. Buffington

2. A roller coaster containing three cars is accelerating at 10 m/s2 before it comes to an abrupt stop at the end of the ride. The mass of one cart is 300 kg. How much force was exerted on the roller coaster to bring it to a stop?
A. 30 N
B. 900 N
C N
D N

3. A force that will work against motion in every situation is-
F. The normal force
G. Weight
H. Gravity
J. Friction

4. A rocket is traveling from Earth to Mars at 10,000 m/s
A rocket is traveling from Earth to Mars at 10,000 m/s. If no outside force is applied to it, what will happen to its speed over the course of the trip?
A. Speed up
B. Slow down
C. Stay constant
D. Changes depending on mass

5. When a car suddenly stops, the objects in the back seat are thrown forward. This is due to the—
F. Law of Inertia
G. Law of Force and Acceleration
H. Law of Action-Reaction
J. Law of Gravitation
(Newton’s 1st Law)

6. Which of Newton's Laws describes the relationship between the mass and force?
A. Law of Inertia
B. Law of Force and Acceleration
C. Law of Action-Reaction
D. Law of Thermodynamics
(Newton’s 2nd Law)

7. A 62 kg wake boarder is being pulled by a boat with a force of 124 N
A 62 kg wake boarder is being pulled by a boat with a force of 124 N. What is the acceleration of the wake boarder?
F. 0.5 m/s/s
G. 5 m/s/s
H. 2 m/s/s
J. 0.2 m/s/s

8. Work this problem… If F=ma, the mass is 40kg and the acceleration is 40 m/s/s, what is the Force in Newton’s?
A. 16 N
B. 160 N
C. 16,000 N
D N

9. If F=ma, what would be the mass of the object if the force is 100N and the acceleration is 20 m/s/s?
A. 5 kg
B. 50 kg
C. 15 kg
D. 20 kg

10. How does mass affect acceleration?
A. A larger object would take longer time to accelerate than a smaller object.
B. A smaller object would take longer time to accelerate than a larger object.
C. A smaller object would take less time to accelerate than a larger object.
D. Both A and C

11. A bakery delivery van is transporting a wedding cake across town to the location of a wedding reception. Which of Newton’s laws best explains why the driver of the van would want to be extra careful when making turns and stops along the route?
A. The law of force and acceleration
B. The law of inertia
C. The law of conservation of mass
D. The law of action-reaction

12. If F=ma, what would be the Force if the mass was 10 kg and the acceleration was 10 m/s/s?
B. 4 N
C. 10 N
D. 100 N

13. If F=ma, what would the mass be if the force is 80 N and the acceleration is 4 m/s/s?
A. 20 kg
B. 2 Kg
C. 40 kg
D. 4 kg

14. You have to work a F=ma problem for every marble!!!
A group of four students is participating in a marble race. Each marble has a different mass and the same force is applied to each marble.
You have to work a F=ma problem for every marble!!!
Which marble will experience the least acceleration?
A. Marble A
B. Marble B
C. Marble C
D. Marble D