Question
Newton's Laws and Dynamics Unit Test
A group of students conduct an experiment to study Newton's second law of motion. They applied a force to a toy car and measure its
acceleration. The table shows the results.
Force (N)
Acceleration (m/s2)
2.0
5.0
3.0
7.5
6.0
15.0
If the students graph the data points, which conclusion will they be able to make?
The data points will not fall along a line. This shows that as the force increases, the acceleration increases.
The data points will not fall along a line. This shows that as the force increases, the acceleration increases.
The data points will fall along a line. This shows that as the force increases, the acceleration increases.
The data points will fall along a line. This shows that as the force increases, the acceleration increases.
The data points will fall along a line. This shows that as long as the force increases, the acceleration decreases.
The data points will fall along a line. This shows that as long as the force increases, the acceleration decreases.
The data points will not fall along a line. This shows that the force increases, the acceleration decreases.
The data points will not fall along a line. This shows that the force increases, the acceleration decreases.
Question 5
7.
A group of students conduct an experiment to study Newton's second law of motion. They applied a force to a toy car and measure its
acceleration. The table shows the results.
Force (N)
Acceleration (m/s2)
2.0
5.0
3.0
7.5
6.0
15.0
If the students graph the data points, which conclusion will they be able to make?
The data points will not fall along a line. This shows that as the force increases, the acceleration increases.
The data points will not fall along a line. This shows that as the force increases, the acceleration increases.
The data points will fall along a line. This shows that as the force increases, the acceleration increases.
The data points will fall along a line. This shows that as the force increases, the acceleration increases.
The data points will fall along a line. This shows that as long as the force increases, the acceleration decreases.
The data points will fall along a line. This shows that as long as the force increases, the acceleration decreases.
The data points will not fall along a line. This shows that the force increases, the acceleration decreases.
The data points will not fall along a line. This shows that the force increases, the acceleration decreases.
Question 5
7.
Answers
GPT-5 mini
Answer: The data points will fall along a line. This shows that as the force increases, the acceleration increases (they are directly proportional).
Reason: each pair gives the same ratio F/a (2.0/5.0 = 0.4, 3.0/7.5 = 0.4, 6.0/15.0 = 0.4), so a = (1/0.4)F = 2.5 F. This is consistent with F = ma with constant mass m = 0.4 kg.
Reason: each pair gives the same ratio F/a (2.0/5.0 = 0.4, 3.0/7.5 = 0.4, 6.0/15.0 = 0.4), so a = (1/0.4)F = 2.5 F. This is consistent with F = ma with constant mass m = 0.4 kg.