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Vocabulary 1
Measuring Motion
What is Force?
Friction
Vocabulary 2
100
a change in position relative to a reference point A. velocity B. speed C. acceleration D. motion
What is motion. (d)
100
Which of the following most closely illustrates motion by relating it to a reference point? A. the hands of a clock relative to the numbers on a clock B. the distance a race car traveled relative to the time of travel C. the speed of a bicycle relative to the distance of travel D. the velocity change of a train relative to time
What is the hands of a clock relative to the numbers on a clock? (a)
100
Which of the following choices best represents force? A. a push or a pull always causing motion B. a push or a pull always causing acceleration C. a push or a pull acting without and object D. a push or a pull acting on an object
What is a push or a pull acting on an object? (d)
100
Which are the two factors that determine the amount of friction? A. the force and the roughness of the surfaces B. hills and valleys and the roughness of the surfaces C. the force and how much surfaces come in contact D. the force and the weight exerted on the surfaces
What is the force and the roughness of the surfaces? (a)
100
the SI unit for force A. newton B. force C. net force
What is newton? (a)
200
the distance an object moved over the time in which the motion took place A. velocity B. speed C. acceleration D. motion
What is speed? (b)
200
Which of the following are two factors that determine speed? A. accerlation and time B. velocity and time C. distance and time D. motion and time
What is distance and time? (c)
200
Which of the following best determines the net force when more than one force is acting on an object? A. a combination of all motions on an object B. a combination of all motions of an object in two directions C. a combination of all forces acting on an object D. a combination of forces acting on an object in two directions
What is a combination of all forces acting on an object? (c)
200
Which of these is opposed by kinetic friction? A. a book sitting on a table B. a cat standing in a yard C. a box sliding on a floor D. a child leaning on a building
What is a box sliding on a floor? (c)
200
the combinatinof all forces acting on an object A. newton B. force C. net force
What is net force? (c)
300
the speed of an object in a certain direction A. velocity B. speed C. acceleration D. motion
What is velocity? (a)
300
Which of the following explains the difference between speed and velocity? A. Velocity has motion, and speed does not. B. Velocity has direction, and speed does not. C. Velocity involves time, and speed does not. D. Velocity involves acceleration, and speed does not.
What is velocity has direction, and speed does not? (b)
300
When the net forces equal 0 N, they are which of the following? A. balanced B. unbalanced C. a push D. a pull
What is balanced? (a)
300
In which of the following activities is friction helpful? A. engine parts wearing out B. car tires moving a car forward C. soil erosion D. holes developing in you socks
What is car tires moving a car forward? (b)
300
Which would NOT be a way to reduce friction? A. using ball bearings B. using sandpaper C. pouring sand on ice D. lubricating with oil
What is pouring sand on ice? (c)
400
the rate of velocity change over time A. velocity B. speed C. acceleration D. motion
What is acceleration? (c)
400
Which of the following best represents acceleration as presented on a graph? A. motion change vs. time B. distance change vs. time C. speed change vs. time D. velocity change va. time
What is velcity change vs. time? (d)
400
Which of the following always caused change in speed, direction, or both? A. balanced forces b. unbalanced forces C. either balanced or unbalanced forces D. any combination of forces
What is unbalanced forces? (b)
400
Which of these is opposed by static friction? A. a pencil rolling on a table B. a dog running in a yard C. a chair sliding on a floor D. a worker pushing on a non-moving box
What is a worker pushing on a non-moving box? (d)
400
a change in position relative to a reference point A. velecity B. speed C. acceleration D. motion
What is motion? (d)
500
a push or a pull exertged on an object in order to change the object's motion A. newton B. force C. net force
What is force? (b)
500
Which of the following most closely illustrates motion by relating it to a reference point? A. the hands of a clock relative to the numbers on a clock B. the distance a race car traveled relative to the time of travel C. the speed of a bicycle relative to the distance of travel D. the velocity change of a train relative to time
What is the hands of a clock relative to the numbers on a clock? (a)
500
Which of the following causes an object to start moving? A. balanced forces B. unbalanced forces C. either balanced or unbalanced forces D. any combination of forces
What is unbalanced forces? (b)
500
In which of the following activities is friction harmful? A. brakes stopping a car B. a person walking C. an eraser erasing D. car engine parts wearing out
What is car engine parts wearing out? (d)
500
the rate of velocity change over time A. velocity B. speed C. accelertion D. motion
What is acceleration? (c)