Name Date Class SECTION 2 - 2 REVIEW AND REINFORCE Force, Mass, and Acceleration • Understanding Main Ideas Answer the following question in the space provided. 1. Newton's second law of motion describes the relationship of force, mass, and acceleration. Write the equation. 2 Write the letter of the correct answer on the line at the left. 2. If you increase the force on an object, its acceleration a. decreases. c. also increases. b. stays the same. d. stops. 3. If you increase the mass on an object, its acceleration b. stays the same. d. stops. a. decreases. c. also increases. 4. How much force is needed to accelerate a 3 kg skateboard at 5 m/s? a. 8N c. 1.6 N 5. How much force is needed to accelerate a 25 kg bowling ball at b. 0.6 N d. 15 N 2 m/s? a. 5N b. 12.5 N c. 50 N 6. If a 2 kg bird is pushed by the wind with a force of 2 N, how fast does the bird accelerate? a. 1 m/s c. 4 m/s d. 100 N b. 2 m/s d. 1 m • Building Vocabulary Skills Answer the following question in the space provided. 7. What is the newton used for measuring? Fill in the blank with the correct units. 8. 1N = 1 kg X 1, OPrentice-Hall, Inc.

Name Date Class SECTION 2 - 2 REVIEW AND REINFORCE Force, Mass, and Acceleration • Understanding Main Ideas Answer the following question in the space provided. 1. Newton's second law of motion describes the relationship of force, mass, and acceleration. Write the equation. 2 Write the letter of the correct answer on the line at the left. 2. If you increase the force on an object, its acceleration a. decreases. c. also increases. b. stays the same. d. stops. 3. If you increase the mass on an object, its acceleration b. stays the same. d. stops. a. decreases. c. also increases. 4. How much force is needed to accelerate a 3 kg skateboard at 5 m/s? a. 8N c. 1.6 N 5. How much force is needed to accelerate a 25 kg bowling ball at b. 0.6 N d. 15 N 2 m/s? a. 5N b. 12.5 N c. 50 N 6. If a 2 kg bird is pushed by the wind with a force of 2 N, how fast does the bird accelerate? a. 1 m/s c. 4 m/s d. 100 N b. 2 m/s d. 1 m • Building Vocabulary Skills Answer the following question in the space provided. 7. What is the newton used for measuring? Fill in the blank with the correct units. 8. 1N = 1 kg X 1, OPrentice-Hall, Inc.