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CIE IGCSE Physics Guaranteed Success

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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?...

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  • July 9, 2024
  • 85
  • 2023/2024
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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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