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#21 and 24

Last updated almost 5 years ago

2 questions

1

1

Question 1

1.

According to Experiment 2, it is reasonable to conclude that, if the students had performed a trial with Bulbs 3 and 4 lit, the distance from the apparatus to the wall measured at the end of the trial would have been which of the following?

3.6 meters

3.8 meters

3.9 meters

Greater than 3.9 meters

Question 2

2.

According to the passage, given that the baseline brightness value is 10 lux, which of the following arrangements would result in a light- meter reading greater than 10 lux?

Bulbs 1 and 3 lit on the apparatus positioned
3.9 m from the wall.

Bulbs 2 and 3 lit on the apparatus positioned
3.9 m from the wall.

Bulb 1 lit on the apparatus positioned 1.5 m
from the wall.

Bulb 5 lit on the apparatus positioned 2.0 m
from the wall.