GCSE AQA Physics Newton's Laws of Motion: Before attaching the mass holder

Question

Before attaching the mass holder the student placed the trolley at the top of the runway. The trolley rolled down the runway without being pushed.

What change to the apparatus in Figure 1 could be made to prevent the trolley from starting to roll down the runway?

Tick (✓) one box.

Move the wooden block to the left.

Shorten the length of the runway.

Use a taller wooden block.

The student attached the mass holder to the string.

The string rubbed along the edge of the bench as the mass holder fell to the floor.

Suggest what the student could do to prevent the string from rubbing.

The light gate and data logger were used to determine the acceleration of the trolley.

The student increased the resultant force on the trolley and recorded the acceleration of the trolley.

Table 1 shows the results.

Figure 2 is an incomplete graph of the results.

Complete Figure 2.

Choose a suitable scale for the x-axis.

Plot the results.

Draw a line of best fit.

Describe the relationship between the resultant force on the trolley and the acceleration of the trolley.

Describe how the investigation could be improved to reduce the effect of random errors.

Before attaching the mass holder the student placed the trolley at the top of the runway - AQA - GCSE Physics - Question 1 - 2020 - Paper 1