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Physics

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Two students want to design a simple experimental investigation that tests the effect of force on a toy car rolling down a ramp. Their materials are:
®
自
• Two identical toy cars
• Two identical wooden ramps
• Blocks to elevate one end of the ramps
• Meter stick
• Timer
Which of the following should be a part of their experimental design? Choose THREE correct answers.
A
Record the distance for one car and the time for the other car.
B
Analyze the data collected.
C
Record the data in a table.
1x
D
Run one trial of the experiment
Apply different amounts of force to each car.

Answer :

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