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1. Jess drives at a steady velocity. Her acceleration is

WEEK 16. 1. Jess drives at a steady velocity. Her acceleration is. e qual to zero. in the same direction as her motion. opposite to her motion. at a right angle to her motion. 2. Acceleration measures a change in. location. direction. position. velocity.

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1. Jess drives at a steady velocity. Her acceleration is

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  1. WEEK 16 1. Jess drives at a steady velocity. Her acceleration is • equal to zero. • in the same direction as her motion. • opposite to her motion. • at a right angle to her motion.

  2. 2. Acceleration measures a change in • location. • direction. • position. • velocity.

  3. 3. How is an object’s mass related to the force needed to accelerate the object? • Mass is not related to the force needed. • The smaller the mass, the greater the force needed. • The greater the mass, the greater the force needed. • The greater the mass, the smaller the force needed.

  4. 4. Air resistance is an example of • gravity. • a noncontact force. • a net force. • friction.

  5. 5. A baby pushes on a large chair. What is the reaction force? • Friction pushes on the chair. • Friction pushes on the baby. • The chair pushes on the baby. • The chair pushes on the floor.

  6. 6. The tendency of an object at rest to stay at rest is • acceleration. • balanced forces. • inertia. • velocity.

  7. 7. Newton’s second law states that to increase acceleration, you • increase force. • decrease force. • increase mass. • increase inertia.

  8. 8. What units are used to measure force? • Kilograms • Meters • Newtons • seconds

  9. 9. A wagon is pulled down a hill with a constant velocity. All the forces on the wagon are • balanced • unbalanced • increasing • decreasing

  10. 10. An action force and its reaction force are • equal in size and direction. • equal in size and opposite in direction. • different in size but in the same direction. • different in size and direction.

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