Core Practical 2.19 - Investigating Force & Acceleration

Question 1

Trolley:

Method:

Answer 1

• Use the meter ruler to mark intervals on the bench, and draw lines on them
• Attach the bench pulley to one end of the bench.
• Tie a string to the toy car or trolley.
• Pass the string over the pulley and attach a mass hanger to the other end.
• Add weights and realease the toy car and start the stopwatch, recording time at each interval.
• Repeat the process to find average times for each interval.
• Decrease the weights on the hanger (0.8 N, 0.6 N, 0.4 N, and 0.2 N), and repeat

Question 2

Trolley

Equipment:

Answer 2

• Trolleys
• Masses of varying weights
• Pulley & String
• Flat, smooth surface (track)

Question 3

Trolley

Variables:

Answer 3

• Independent variable - Force
• Dependent variable - Acceleration
• Control variables - Mass