Pumpkins
Ghosts
Vampires
100
A student claims that gravitational force affects the motion of every object on Earth. Which statement best supports this claim?
A. A toy car stops rolling after traveling a distance.
B. A ball falls to the ground when dropped from a height.
C. A box needs more force to be pushed across a rough surface.
D. A bicycle moves forward when a force is applied to the pedals.
B. A ball falls to the ground when dropped from a height.
100
Robby has two toy trucks. His red truck has a higher mass than his blue truck. What will he have to do to make the two trucks go the same speed?
A. He can push both trucks with the same force for the same period of time.
B. He can push both trucks with the same force, but he will have to push the red truck for a longer time.
C. He can push both trucks for the same amount of time, but he will have to push the red truck with more force.
D. He can push both trucks for the same amount of time, but he will have to push the blue truck with more force.
C. He can push both trucks for the same amount of time, but he will have to push the red truck with more force.
100
Stacy wants to roll an 8-lb bowling ball and a 10-lb bowling ball along a flat surface. If she wants to have both bowling balls roll at the same speed, what must she do?
A. decrease the force of gravity acting on the 8-lb ball
B. use more force to push the 8-lb ball than is used to push the 10-lb ball
C. use more force to push the 10-lb ball than is used to push the 8-lb ball
D. increase the force of gravity on the 8-lb ball while not changing the force of gravity on the 10-lb ball
C. use more force to push the 10-lb ball than is used to push the 8-lb ball
200
The diagram shows four objects that are falling from different heights.
Which object experiences the highest gravitational force?
A. object W because it has the largest size
B. object X because it has the largest mass
C. object Y because it has the smallest mass
D. object Z because it has the smallest size
B. object X because it has the largest mass
200
Sara rolled a basketball across some flat ground and noticed the ball slowed down and eventually stopped. Which best explains why the basketball stopped rolling?
A. The force of friction pulled on the basketball.
B. The force of gravity on the basketball increased.
C. The size of the basketball decreased as the ball rolled.
D. The mass of the basketball increased as the ball rolled.
A. The force of friction pulled on the basketball.
200
Which object would need the least amount of force to move?
A. a car
B. a bike
C. a truck
D. a motorcycle
B. a bike
300
What happens to the speed of an object when the position does not change over a period of time?
A. speed increases
B. speed decreases
C. speed remains zero
D. speed changes uniformly
C. speed remains zero
300
Which graph could show a boy walking to his grandmother’s house and stopping along the way to eat his lunch?
a.
b.
c.
d.
d.
300
The graph shows two bicycles riding during a race.
How much more time did bicycle X spend stopped than bicycle Y?
A. less than one hour
B. 1 hour
C. 2 hours
D. 3 hours
B. 1 hour
400
Which best explains what happens to the speed of a toy car as it rolls across a flat surface covered in carpet?
A. It increases in speed because of friction.
B. It decreases in speed because of friction.
C. It increases in speed because of the force of gravity.
D. It decreases in speed because of the force of gravity.
B. It decreases in speed because of friction.
400
An object is moving with a speed of 12 meters/second in a straight line. What will be the distance traveled by the object in 5 seconds?
(distance = speed x time)
A. 2.4 meters
B. 7 meters
C. 17 meters
D. 60 meters
D. 60 meters
400
What two pieces of information do you need to determine an object's speed?
A. length and width
B. area and perimeter
C. distance and time
D. volume and time
C. distance and time
500
The graph below shows the journey of a car over a period of 12 hours.
Which line segment shows a period of time when the car was stopped?
A. segment BC
B. segment CD
C. segment DE
D. segment EF
B. segment CD
500
Which most affects a baseball’s motion when it is hit by a batter?
A. the mass of the batter and how high the ball was thrown
B. the mass of the batter and how fast the ball was thrown
C. the angle of the baseball and how hard the batter hits it
D. the mass of the baseball and how hard the batter hits it
D. the mass of the baseball and how hard the batter hits it
500
Which best describes friction?
A. when objects collide
B. when objects rub together
C. when objects pull towards each other
D. when objects move away from each other
B. when objects rub together