Module 1-7 Multiple Choice (STM 003) PDF

MODULE 1-7 MULTIPLE CHOICE (STM 003) 5. Which of the following statements correctly distinguishes between mass and weight? 1. Which of the following is an example of converting a physic...

MODULE 1-7 MULTIPLE CHOICE (STM 003) 5. Which of the following statements correctly distinguishes between mass and weight? 1. Which of the following is an example of converting a physical quantity using a metric prefix and scientific A. Mass and weight are the same thing; both refer to notation correctly? the amount of matter in an object. A. Converting 5,000 meters to kilometers: 5 x 103 km B. Mass is a measure of the gravitational force B. Converting 0.004 meters to centimeters: 4 x 103 cm on an object, while weight is the amount of matter in the object. C. Converting 80 meters to kilometers: 8 x 10-2 km C. Mass is a measure of the amount of matter in an object. It is constant regardless of location, while weight is D. Converting 8,200 meters to kilometers: 8.2 x 102 km the force exerted on an object due to gravity. E. Converting 5,000,000 meters to kilometers: 5 x 106 D. Mass and weight are interchangeable terms km that both changes depending on the object's location in the universe. 2. A cyclist travels in a straight line from one city to another, covering a total distance of 60 kilometers in 3 6. A car moves with a constant acceleration and reaches hours. During this time, the cyclist maintains a steady a velocity of 20 m/s after 5 seconds. The car then continues to pace. What can be inferred about the cyclist's average move at this constant velocity for another 10 seconds. How is velocity? the car’s motion described during the last 10 seconds of travel? A. The average velocity is equal to the average speed ​ A. The car is accelerating uniformly. since there is no change in direction. ​ B. The car's velocity is increasing. C. The car is moving with constant velocity. B. The average velocity is half of the total distance D. The car's acceleration is zero but its velocity is traveled. changing. E. The car is experiencing negative acceleration. C. The average velocity is zero because the direction is not mentioned. 7. An object is thrown vertically upwards with an initial speed of 15 m/s. After reaching its peak height, it falls D. The average velocity is the total distance divided by back to the ground. At the peak of its trajectory, what is true the time, with a direction included. about the object's motion? E. The average velocity cannot be calculated without A. The object's velocity is at its maximum value. knowing the exact path taken. B. The object's acceleration is zero. 3. A ball is dropped from the top of a building and takes 4 seconds to reach the ground. Which of the following statements C. The object's velocity is zero. is correct regarding the ball's motion? A. The ball’s velocity increases at a constant rate due D. The object's acceleration is equal to its initial velocity. to acceleration from gravity. E. The object's acceleration is equal to the velocity at that B. The ball's displacement is zero because it falls back point. to its original position. 8. An astronaut on the moon drops a hammer and a C. The ball's acceleration is zero because it falls freely. feather from the same height at the same time. Both objects hit the lunar surface simultaneously. Why do the hammer D. The ball’s velocity is constant throughout the fall. and the feather hit the ground at the same time on the moon? E. The ball’s motion is described by uniform circular motion. A. The hammer and feather have the same mass on the moon. 4. Suppose a tennis ball is thrown straight up into the air. When the ball reaches the peak of its trajectory, which of the B. There is no air resistance on the moon. following statements correctly describes the ball’s vertical velocity and vertical acceleration? C. The moon’s gravity does not affect the hammer. A. Both its vertical acceleration and vertical velocity D. The feather has a higher density on the moon. are zero E. The hammer is dropped with a higher initial velocity. B. Its vertical velocity is zero and its vertical acceleration is constant 9. Two identical bicycles, X and Y, travel around a C. Its vertical velocity is constant and its vertical circular track with the same radius. Bicycle X moves at a acceleration is zero speed three times that of bicycle Y. Compared to bicycle Y, the centripetal acceleration of bicycle X is ____________. D. Neither its vertical velocity nor its vertical acceleration is zero A. three times greater than that of bicycle Y. B. nine times greater than that of bicycle Y. C. one-third of that of bicycle Y. D. the same as that of bicycle Y, because they are on the same track and have the same mass. 10. A satellite orbits Earth in a stable circular orbit. The 15. Two ice skaters push off from each other on a satellite maintains a constant speed throughout its orbit. frictionless ice rink. Skater A is much lighter than Skater B. What type of motion does the satellite experience? What happens to the velocities of the skaters after they push off? A. Uniform linear motion A. Both skaters will have the same velocity. B. Uniform circular motion B. Skater A will move faster than Skater B. C. Simple harmonic motion C. Skater B will move faster than Skater A. D. Projectile motion D. Both skaters will remain stationary. 11. What is centripetal force? A. The force that pulls objects to the center of a circular path. B. The force that pushes objects away from the center of a circular path. C. The force that causes objects to fall to the ground. D. The force that keeps objects in a straight-line motion. 12. What is Newton's First Law of Motion? A. The acceleration of an object is directly proportional to the net force acting on it. B. For every action, there is an equal and opposite reaction. C. An object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an external force. D. The force acting on an object is equal to its mass times its acceleration. 13. A box is sitting on a frictionless table. You push the box with a force of 10 N to the right. According to Newton’s Third Law, what is the reaction force? A. A force of 10 N pushing the box to the left. B. A force of 10 N pushing you to the left. C. A force of 10 N pushing the box downwards. D. A force of 10 N pushing the box upwards. 14. A person is pushing a stationary car with a force but the car does not move. According to the work-energy principle, what can be said about the work done on the car? A. The work done is positive. B. The work done is negative. C. The work done is zero. D. The work done is equal to the kinetic energy of the car.