nt: (Post-Test) Multiple Choice: Directions: Read and answer the questions below. Choose the letter of the correct answer and write in your answer sheet.
1. How does unbalanced forces affect the motion of an object? A. It can cause no changes in speed. B. It can cause no changes in direction. C. It can stop the object from moving. D. It can cause resting object to move.
2. Which of the following forces below are acting on an object moving at constant speed in same direction? A. balanced forces B. combined forces C. unbalanced forces D. centripetal force
3. What force remains constant in uniform circular motion? A. balanced forces B. combined forces C. centripetal forces D. unbalanced forces
4. Which of the following refers to the overall force acting on an object? A. net force B. unbalanced force C. balanced force D. tension force
5. Which forces are acting on a stuffed toy that is placed on top of a shelt? A. friction and centripetal force B. normal force and force of gravity C. tension force and force of gravity D. tension force and normal force
6. Which of the following are characteristics of circular motion? A. speed of an object unchanged B. object moves along a circle C. the direction of radius vector is constant D. magnitude of velocity is constant
7. Which of the following describes balanced forces? A. a stick changing position B. a pen that dropped from a table C. a ping pong ball moving back and forth D.5 volumes of encyclopedia on top of a table
8. Which law of motion explains uniform circular motion? A. Law of Inertia B. Law of Interaction C. Law of Action and Reaction D. Law of Acceleration
9. What forces keep a roller coaster on the track? A. tension and centripetal force B. normal and centripetal force C. friction and centripetal force D. gravity and centripetal force
10.Which of the following objects exhibit uniform circular motion? A. Ferries wheel B. car in parking lot C. badminton racket hanging D. bowling ball at rest 17​