Use the table of data from an investigation to answer the question.

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 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.

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.

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.

Perform a second trial.
Perform a second trial.

Measure the mass of the balls again.
Measure the mass of the balls again.

Drop the balls from a different height.

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

Jade
Jade

Ziva
Ziva

Owen
Owen

Eduardo

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 dropping the balls from the same height
by dropping the balls from the same height

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 measuring the circumference of the balls

Answer 1

Here are the answers to your questions based on the provided data:

1. What is the most likely source of error in the first investigation?

   • Response: She dropped the balls from different heights.

2. Which step should be next in the student's investigation of gravity?

   • Response: Perform a second trial.

3. Which student most likely had an error in the results?

   • Response: Owen.

4. How can the student improve the investigation?

   • Response: by dropping the balls from the same height.

If you need further clarification or assistance, feel free to ask!