Edexcel IGCSE Physics 1.21 Falling Objects and Terminal Velocity Questions
As an object speeds up, drag rises until it balances weight; explain how resultant force and acceleration change.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- draw or label weight and drag arrows on a falling object or parachutist diagram
- explain how increasing drag changes resultant force, acceleration and speed during a fall
- link terminal velocity to balanced weight and air resistance with zero resultant force
Edexcel IGCSE Physics 1.21 Falling Objects and Terminal Velocity Questions question 1
[Maximum number: 5]
A student stretches a rubber band.
The student stretches the rubber band and then releases it. The band moves vertically upwards.
The band reaches its maximum height.
Explain the motion of the band as it falls from its maximum height to the ground.
Refer to forces in your answer.
You may assume
- the band does not rotate
- the band does not reach terminal velocity
any five from:
MP1. band has weight;
MP2. no drag at highest point;
MP3. resultant force is downwards;
MP4. band accelerates;
MP5. (once band is moving) there is drag
MP6. drag increases (while accelerating);
MP7. resultant force decreases;
MP8. (so) acceleration decreases;
allow 'has gravitational
force'
ignore 'has gravity'
allow 'air resistance'
for 'drag'
All question bank results loaded