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Motion
Explain speed as the distance covered in a specific time period and use the formula v = s/t.
13
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130
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91
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90 min
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CambridgeIGCSEPhysicsMotion, forces and energy
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Motion outcomes13 objectives
- Explain speed as the distance covered in a specific time period and use the formula v = s/t.
- Explain velocity as speed with a specified direction.
- Use the formula average speed = total distance / total time to calculate average speed.
- Create, analyze, and interpret distance-time and speed-time graphs.
- Identify from data or the shape of graphs when an object is at rest, moving at constant speed, accelerating, or decelerating.
- Calculate speed using the slope of a straight section on a distance-time graph.
- Find the area under a speed-time graph to calculate the distance traveled during constant speed or constant acceleration.
- Recognize that the acceleration due to gravity (g) near Earth's surface is approximately constant at 9.8 m/s².
- Define acceleration as the rate of change of velocity over time and use the formula a = Δv/Δt.
- Determine from data or the shape of a speed-time graph when an object has constant or changing acceleration.
- Calculate acceleration using the slope of a speed-time graph.
- Understand that deceleration refers to negative acceleration and apply this in calculations.
- Describe the behavior of falling objects in a uniform gravitational field, considering effects of air or liquid resistance and terminal velocity.
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