CIE IGCSE Physics Guaranteed Success
1. Define speed using the formula. - Speed = distance ÷ time
2. What does a distance-time graph look like when the object is at rest? - It shows a horizontal line.
3. What does a distance-time graph look like when the object is moving with constant speed?...
CIE IGCSE Physics Guaranteed Success
1. Define speed using the formula.
- Speed = distance ÷ time
2. What does a distance-time graph look like when the object is at rest?
- It shows a horizontal line.
3. What does a distance-time graph look like when the object is moving with constant speed?
- It appears as a slanted line.
4. What does a distance-time graph look like when the object is moving with changing speed?
- It displays a curved line.
,5. What does the area under the graph represent in a speed-time graph for motion with constant
acceleration?
- It represents the distance traveled.
6. How does the gradient of a speed-time graph change if a body accelerates?
- The gradient of the speed-time graph becomes positive.
7. How does the gradient of a speed-time graph change if a body decelerates?
- The gradient of the speed-time graph becomes negative.
8. Differentiate between speed and velocity.
- Speed is scalar, representing how fast an object moves. Velocity is a vector, indicating both speed and
direction.
,9. Define acceleration using the formula.
- Acceleration (a) = change in velocity (Δv) ÷ time (t)
10. What does the gradient represent on a distance-time graph?
- The gradient represents speed.
11. What does the gradient represent on a speed-time graph?
- The gradient represents acceleration.
12. On a speed-time graph, what does a straight line with a positive gradient indicate?
- It indicates constant acceleration.
13. On a speed-time graph, what does a curved line with a positive gradient indicate?
- It indicates changing acceleration.
, 14. Define deceleration.
- Deceleration is negative acceleration.
15. Define the mass of a body.
- The mass of a body is the amount of matter it contains, measured by the number of particles.
16. What type of force is weight?
- Weight is a gravitational force.
17. Differentiate between mass and weight.
- Mass is the amount of matter in a body, while weight is the gravitational force acting on that mass.
18. Define weight using the formula.
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