Investigating Gravity Quick Check
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Question
Use the table of data from an investigation to answer the question.
Mass of ball (grams) Time to hit ground (seconds)
10 1.02
15 1.01
26 1.62
A student is investigating gravity and falling objects. She drops three balls and times how long it takes each ball to hit the ground. What is the most likely source of error?
(1 point)
Responses
She dropped the balls from different heights.
She dropped the balls from different heights.
She used balls that are different sizes.
She used balls that are different sizes.
She did not measure the mass after the balls hit the ground.
She did not measure the mass after the balls hit the ground.
She did not measure the circumference of the balls.
She did not measure the circumference of the balls.
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She dropped the balls from different heights.
Investigating Gravity Quick Check
2 of 42 of 4 Items
Question
A student wants to know if the effect of gravity is the same on all objects. She follows these steps:
Drop a 5-gram ball, a 10-gram ball, and a 12-gram ball from a height of 10 meters.
Record how long it takes for each object to hit the ground.
?
Which step should be next?
(1 point)
Responses
Choose new balls.
Choose new balls.
Measure the mass of the balls again.
Measure the mass of the balls again.
Drop the balls from a different height.
Drop the balls from a different height.
Perform a second trial.
Measure the mass of the balls again.
Investigating Gravity Quick Check
3 of 43 of 4 Items
Question
Use the table of data from an investigation on the effect of gravity on falling objects to answer the question.
Student Ball 1 (seconds) Ball 2 (seconds) Ball 3 (seconds)
Ziva 0.52 0.51 0.51
Jade 0.51 0.52 0.52
Eduardo 0.50 0.50 0.50
Owen 0.50 0.37 0.51
Four students investigated the effect of gravity on falling objects. The students all used the same three balls and dropped them from a height of 8 meters. They recorded the time it took for each ball to hit the ground. Which student most likely had an error in the results?
(1 point)
Responses
Owen
Owen
Jade
Jade
Eduardo
Eduardo
Ziva
Ziva
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Jade
Investigating Gravity Quick Check
4 of 44 of 4 Items
Question
Use the table of criteria for an investigation to answer the question.
Object To Be Dropped Drop Height (meters)
10-gram ball 5
5-gram ball 8
18-gram ball 10
A student designs an investigation to study the effect of gravity on objects on Earth. He will use the criteria shown. How can the student improve the investigation?
(1 point)
Responses
by using balls that are the same mass
by using balls that are the same mass
by finding balls made from different materials
by finding balls made from different materials
by dropping the balls from the same height
by dropping the balls from the same height
by measuring the circumference of the balls
by measuring the circumference of the balls
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