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
a) She dropped the balls from different heights.
b) She did not measure the circumference of the balls.
c) She used balls that are different sizes.
c) She used balls that are different sizes.
my bad there was a 4 response and that response is d) She did not measure the mass after the balls hit the ground not sure if that changes the answer but...
If there is a fourth response that states "d) She did not measure the mass after the balls hit the ground", then that would indeed be the most likely source of error. Without measuring the mass of the balls after they hit the ground, it cannot be confirmed that the mass remained constant throughout the experiment. Variations in mass could affect the rate at which the balls fall and could introduce errors in the measurements.
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
a) She dropped the balls from different heights.
b) She did not measure the circumference of the balls.
c) She used balls that are different sizes.
d) She did not measure the mass after the balls hit the ground.
The most likely source of error in the given investigation would be:
a) She dropped the balls from different heights.
This is because the time it takes for an object to hit the ground is influenced by the height from which it is dropped. Since the table does not mention that the balls were dropped from the same height, variations in the drop height could lead to inconsistencies in the measurements of the time it takes for the balls to hit the ground.
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
a) Choose new balls.
b) Measure the mass of the balls again.
c) Perform a second trial.
d) Drop the balls from a different height.
c) Perform a second trial.
Performing a second trial would help ensure the reliability and accuracy of the measurements. By repeating the experiment multiple times, it allows the student to observe any consistent patterns or trends in the results. It also helps to minimize any potential errors or outliers that may have occurred during the first trial.
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
a) Owen
b) Ziva
c) Eduardo
d) Jade
The student who most likely had an error in the results is:
d) Jade
This is because Jade's results for Ball 1 and Ball 2 are consistently greater (0.52 seconds) compared to the other students' results. This deviation suggests a potential error in their measurements or timing method.
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
a) by dropping the balls from the same height
b) by using balls that are the same mass
c) by finding balls made from different materials
d) by measuring the circumference of the balls