ACT Science Practice 2

Question 1

Based on Table 1, what was the large wheel's rotation speed when the motor voltage was 8 V?

Accepted Answer

480 RPM

Answer

360 RPM

Answer

420 RPM

Answer

450 RPM

Question 2

As motor voltage increased from 2 V to 10 V, how did the RPM of the small wheel and the large wheel change, according to Table 1?

Accepted Answer

It increased for both wheels, with the small wheel increasing more than the large wheel.

Answer

It increased for the small wheel but decreased for the large wheel.

Answer

It decreased for both wheels.

Answer

It increased for both wheels, with the large wheel increasing more than the small wheel.

Question 3

Based on the trend in Table 1, the large wheel's RPM at a motor voltage of 5 V would most likely be closest to which of the following?

Accepted Answer

300 RPM

Answer

360 RPM

Answer

420 RPM

Answer

480 RPM

Question 4

At a motor voltage of 4 V, how much greater was the small wheel's RPM than the large wheel's RPM, according to Table 1?

Accepted Answer

60 RPM

Answer

20 RPM

Answer

40 RPM

Answer

80 RPM

Question 5

According to Table 2, what was the current draw of the motor when the voltage was 4 V?

Accepted Answer

0.9 A

Answer

0.5 A

Answer

1.3 A

Answer

1.7 A

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