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Matter in Motion Book M Chapter 1 Test Review An object that appears to stay in place and helps detect motion is… a. lubricant b. black hole c. reference point d. newton An object that appears to stay in place and helps detect motion is… a. lubricant b. black hole c. reference point d. newton An object accelerates when what component(s) change? A. speed b. direction c. speed and direction d. all of the above An object accelerates when what component(s) change? A. speed b. direction c. speed and direction d. all of the above Total distance total time Is the formula for… a. speed b. velocity c. acceleration d. net force Total distance total time Is the formula for… a. speed b. velocity c. acceleration d. net force If you travel 300 miles in 5 hours, what is your speed? A. 1500 mph B. 1500 m/s C. 60 mph D. 60 m/s If you travel 300 miles in 5 hours, what is your speed? A. 1500 mph B. 1500 m/s C. 60 mph D. 60 m/s What is the difference between speed and velocity? A. speed had direction, while velocity does not. B. velocity has direction, while speed does not. C. velocity involves time, while speed does not. D. speed involves time, while velocity does not. What is the difference between speed and velocity? A. speed had direction, while velocity does not. B. velocity has direction, while speed does not. C. velocity involves time, while speed does not. D. speed involves time, while velocity does not. Why does friction occur? A. unbalanced forces. B. the roughness of any object’s surface. C. only the masses of any two objects. D. only the weights of any two objects. Why does friction occur? A. unbalanced forces. B. the roughness of any object’s surface. C. only the masses of any two objects. D. only the weights of any two objects. In the law of universal gravitation, gravitational force is related to… a. mass and friction b. mass and distance c. weight and distance d. weight and friction In the law of universal gravitation, gravitational force is related to… a. mass and friction b. mass and distance c. weight and distance d. weight and friction An example of helpful friction is… a. tires moving a car forward b. holes developing in your socks. C. car engine parts wearing out d. the erosion of soil by the wind. An example of helpful friction is… a. tires moving a car forward b. holes developing in your socks. C. car engine parts wearing out d. the erosion of soil by the wind. Force is… A. attraction between objects. B. a push or pull on an object. C. Always acting to oppose motion. D. speed of an object in a particular direction. Force is… A. attraction between objects. B. a push or pull on an object. C. Always acting to oppose motion. D. speed of an object in a particular direction. What three things do you need to know to calculate an object’s average acceleration? A. starting velocity, final velocity, and time it takes to change velocity. B. starting velocity, distance traveled, and speed. C. starting point, endpoint, and the object’s mass. D. average speed, distance, and the time it takes to change velocity. What three things do you need to know to calculate an object’s average acceleration? A. starting velocity, final velocity, and time it takes to change velocity. B. starting velocity, distance traveled, and speed. C. starting point, endpoint, and the object’s mass. D. average speed, distance, and the time it takes to change velocity. What is mass? A. different on the moon than on Earth. B. measured in newtons. C. a measure of gravitational force. D. a measure of the amount of matter. What is mass? A. different on the moon than on Earth. B. measured in newtons. C. a measure of gravitational force. D. a measure of the amount of matter. Mr. Grim ran 30 meters three times. His average speed was 15 m/s, 20 m/s, and 10 m/s. What was his overall average speed? A. 15 m/s B. 45 m/s C. 135 m/s D. 1.5 m/s Mr. Grim ran 30 meters three times. His average speed was 15 m/s, 20 m/s, and 10 m/s. What was his overall average speed? A. 15 m/s B. 45 m/s C. 135 m/s D. 1.5 m/s Mr. Grim’s overall speed was 15 m/s. He wants to increase his speed by 20%. What would his new overall average speed be? A. 70 m/s B. 30 m/s C. 3 m/s D. 18 m/s Mr. Grim’s overall speed was 15 m/s. He wants to increase his speed by 20%. What would his new overall average speed be? A. 70 m/s B. 30 m/s C. 3 m/s D. 18 m/s (20% of 15 is 3. Add 3 to 15) A biker is NOT accelerating if he is… A. going straight while speeding up. B. going straight while slowing down. C. making circles at constant speed. D. going straight at a constant speed. A biker is NOT accelerating if he is… A. going straight while speeding up. B. going straight while slowing down. C. making circles at constant speed. D. going straight at a constant speed. A biker’s velocity begins at 2.7 m/s uphill and changes to 2.3 m/s uphill. How do you know that the biker has negative acceleration? A. the speed decreased. B. the direction was unchanged. C. the direction changed. D. the speed increased. A biker’s velocity begins at 2.7 m/s uphill and changes to 2.3 m/s uphill. How do you know that the biker has negative acceleration? A. the speed decreased. B. the direction was unchanged. C. the direction changed. D. the speed increased. Friction is… a. a force that always act to oppose motion. b. a measure of gravity. c. the force of attraction between objects. d. dependent on weight and gravity. Friction is… a. a force that always act to oppose motion. b. a measure of gravity. c. the force of attraction between objects. d. dependent on weight and gravity. Why does an object change direction or speed? a. balanced forces b. unbalanced forces c. law of universal gravitation d. net force Why does an object change direction or speed? a. balanced forces b. unbalanced forces c. law of universal gravitation d. net force The force of attraction between objects that is due to their masses is… a. mass b. weight c. gravity d. friction The force of attraction between objects that is due to their masses is… a. mass b. weight c. gravity d. friction What is the net force on an object when you combine a force of 25 N east with a force of 5 N west? a. 20 N west b. 125 N east c. 30 N west d. 20 N east What is the net force on an object when you combine a force of 25 N east with a force of 5 N west? a. 20 N west b. 125 N east c. 30 N west d. 20 N east If an astronaut has a weight of 600 N on Earth, what is the astronaut’s weight on the moon? (Moon’s gravity = 1/6 of Earth’s gravity) a. 3,600 N b. 3,600 kg c. 100 N d. 100 kg If an astronaut has a weight of 600 N on Earth, what is the astronaut’s weight on the moon? (Moon’s gravity = 1/6 of Earth’s gravity) a. 3,600 N b. 3,600 kg c. 100 N d. 100 kg What causes an object to start or stop moving? a. balanced forces b. unbalanced forces c. law of universal gravitation d. mass What causes an object to start or stop moving? a. balanced forces b. unbalanced forces c. law of universal gravitation d. mass The graph shows distance traveled during a race. Because the upward slope is straight and objects don’t normally travel at a constant rate, what does it MOST likely represent? a. actual acceleration b. average acceleration c. actual speed d. average speed The graph shows distance traveled during a race. Because the upward slope is straight and objects don’t normally travel at a constant rate, what does it MOST likely represent? a. actual acceleration b. average acceleration c. actual speed d. average speed Mass is… a. a measure that does not change when an object’s location changes. b. the amount of matter in an object. c. measured in grams or kilograms. d. all of the above Mass is… a. a measure that does not change when an object’s location changes. b. the amount of matter in an object. c. measured in grams or kilograms. d. all of the above Moving a heavy piece of furniture is easier if you put it on wheels because of… a. rolling kinetic friction b. static friction c. sliding kinetic friction d. gravitational friction Moving a heavy piece of furniture is easier if you put it on wheels because of… a. rolling kinetic friction b. static friction c. sliding kinetic friction d. gravitational friction The gravitational pull is greater between two objects that… a. are farther apart. b. have greater masses. c. are moving at greater speed. d. have rougher surfaces. The gravitational pull is greater between two objects that… a. are farther apart. b. have greater masses. c. are moving at greater speed. d. have rougher surfaces. A force that will produce a change in motion must be a. balanced. b. gravitational. c. unbalanced. d. frictional. A force that will produce a change in motion must be a. balanced. b. gravitational. c. unbalanced. d. frictional. This is a graph of a roller coaster car moving up a hill. What does the straight upward slope show? a. negative velocity b. negative acceleration c. positive velocity d. positive acceleration This is a graph of a roller coaster car moving up a hill. What does the straight upward slope show? a. negative velocity b. negative acceleration c. positive velocity d. positive acceleration Which statement about weight is false? a. weight is the measure of gravitational force exerted on an object. b. weight is measured in newtons. c. weight is always constant. d. weight is measure with a scale. Which statement about weight is false? a. weight is the measure of gravitational force exerted on an object. b. weight is measured in newtons. c. weight is always constant. d. weight is measure with a scale. Velocity is… a. the speed of an object. b. the speed of an object in a particular direction. c. speeding up or slowing down. 2 d. measured in m/s Velocity is… a. the speed of an object. b. the speed of an object in a particular direction. c. speeding up or slowing down. d. measured in m/s2 Study Hard…