Movement And Position
Overview
From a car braking at traffic lights to a sprinter powering out of the blocks, everything around you involves objects changing position over time. Learning how to describe that motion with numbers, equations and graphs is the starting point for all of mechanics - and one of the most tested skills in your Edexcel Science exam.
This lesson covers average speed, acceleration, distance-time graphs and velocity-time graphs. You will practise reading gradients and areas from graphs, use the key equations of motion, and build the confidence to tackle calculation questions worth up to eight marks on Papers 1 and 2.
Objectives
- Plot and explain distance-time graphs
- Know and use the relationship between average speed, distance moved and time taken
- Investigate the motion of everyday objects such as toy cars or tennis balls
- Know and use the relationship between acceleration, change in velocity and time taken
- Plot and explain velocity-time graphs
- Determine acceleration from the gradient of a velocity-time graph
- Determine the distance travelled from the area between a velocity-time graph and the time axis
Mind map
This topic is mapped out so you can see how the ideas connect.
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Flashcards
Quick recall practice on the facts this topic is tested on.
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Lesson Note
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Lesson Evaluation
Congratulations on completing the lesson on Movement And Position. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.
You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.
Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.
- What does the gradient of a distance-time graph represent? A) Acceleration B) Force C) Speed D) Distance Answer: C
- A car slows from 20 m/s to 8 m/s in 4 s. What is the acceleration? A) 3 m/s squared B) -3 m/s squared C) 7 m/s squared D) -7 m/s squared Answer: B
- On a velocity-time graph, what does the area under the line give? A) Speed B) Acceleration C) Force D) Distance Answer: D
- An object covers 300 m in 60 s. Its average speed is: A) 3 m/s B) 5 m/s C) 18 m/s D) 360 m/s Answer: B
- A flat (horizontal) line on a distance-time graph means the object is: A) Accelerating B) Moving at constant speed C) Stationary D) Decelerating Answer: C
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Practice Mock Questions
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