Which most affects a baseball’s motion when it is hit by a batter?
Oops!
Show
Check
Okay!
Check
15
Which best explains what happens to the speed of a toy car as it rolls across a flat surface covered in carpet?
Oops!
Show
Check
Okay!
Check
15
Which best describes friction?
Oops!
Show
Check
Okay!
Check
15
Which graph could show a boy walking to his grandmother’s house and stopping along the way to eat his lunch?
Oops!
Show
Check
Okay!
Check
15
The graph shows the speed of three race cars over a distance of 1.25 kilometers. The graph shows the speed of three race cars over a distance of 1.25 kilometers.
Oops!
Show
Check
Okay!
Check
15
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?
Oops!
Show
Check
Okay!
Check
15
The diagram shows four objects that are falling from different heights.
Oops!
Show
Check
Okay!
Check
15
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?
The force of friction pulled on the basketball.
Oops!
Check
Okay!
Check
15
The graph shows two bicycles riding during a race. How much more time did bicycle X spend stopped than bicycle Y?
1 hour
Oops!
Check
Okay!
Check
15
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 × time)
60 meters
Oops!
Check
Okay!
Check
15
A student claims that gravitational force affects the motion of every object on Earth. Which statement best supports this claim?
Oops!
Show
Check
Okay!
Check
seesaw
Swap points!
Oops!
gold
Win 50 points!
Okay!
rocket
Go to first place!
Okay!
lifesaver
Give 25 points!
Oops!
15
Which object would need the least amount of force to move?
Oops!
Show
Check
Okay!
Check
15
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?
He can push both trucks for the same amount of time, but he will have to push the red truck with more force.
