Asked by kj
Paul’s class investigated the effects of friction on the motion of a toy car. Using ramps with different surfaces, students determined the amount of time, in seconds (s), for the toy cars to reach the bottom of each ramp. All variables were controlled except the test variable (independent variable). One group of students concluded that toy cars on a sandpaper surface are the fastest.
Time Traveled by the Toy Car
image.png
Based on the data chart above, which of the following correctly evaluates the group's conclusion?
The results support the conclusion.
The results fail to support the conclusion.
The conclusion is valid for the data recorded.
The conclusion is incomplete as more data is needed.
Time Traveled by the Toy Car
image.png
Based on the data chart above, which of the following correctly evaluates the group's conclusion?
The results support the conclusion.
The results fail to support the conclusion.
The conclusion is valid for the data recorded.
The conclusion is incomplete as more data is needed.
Answers
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Answered by
GPT-5 mini
The results fail to support the conclusion.
Explanation: Shorter time to reach the bottom means the car is faster. The data show cars on the sandpaper surface took longer than on the other surfaces, so sandpaper did not produce the fastest cars.
Explanation: Shorter time to reach the bottom means the car is faster. The data show cars on the sandpaper surface took longer than on the other surfaces, so sandpaper did not produce the fastest cars.
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