Motion Graphs Lesson Element OCR 2017 Task 1

Motion Graphs Lesson Element © OCR 2017

Task 1 Get into pairs having one person facing the board (Person A) whilst the other faces away (Person B). Person A will be shown a distance-time graph, they must explain the journey that it shows to Person B draws a graph of the journey being described. The graph they draw must be exactly the same as the one displayed. © OCR 2017

Journey 1 © OCR 2017 Person A face away

Journey 2 © OCR 2017 Person B face away

Journey 3 © OCR 2017 Person A face away

Journey 4 © OCR 2017 Person B face away

Task 2 You will be given a scenario on the board which you must interpret into a velocity time graph. It may require some calculations. © OCR 2017

Scenario 1 1. James starts out south of home. After 10 seconds he has reached a speed of 40 km/h. 2. He continues at this speed for a further 40 seconds. 3. He then hits a deer and comes to a stop in 3 seconds. 4. He stays there for 5 seconds before fleeing the scene of the crime, James takes off again in the same direction, speeding up and reaching a speed of 80 km/h in 5 seconds. 5. When his conscience gets the better of him 10 seconds later, he slows, and stops in 10 seconds. © OCR 2017

Answers © OCR 2017

Scenario 2 1. Maria decides to drive to work. She speeds to 35 km/h in 10 seconds and remains at this speed for 5 seconds. 2. She then sees the traffic light and slows down to a stop in 5 seconds. 3. 20 seconds later she then speeds on to the dual carriageway at 75 km/h in 10 seconds. 4. She remains at this speed for 30 seconds before arriving at work. She slows the car to a stop in 15 seconds. © OCR 2017

Answers © OCR 2017

Task 3 You will be provided with a number of different situations. Identify the measurements and then class them as a scalar or vector quantity. © OCR 2017

Which measurement? 10 km Displacement Distance Acceleration Momentum © OCR 2017

Vector or Scalar? 10 km Vector © OCR 2017 Scalar Distance

Which measurement? 10 km/h East Displacement Distance Velocity Momentum © OCR 2017

Vector or Scalar? 10 km/h East Vector © OCR 2017 Scalar Velocity

Which measurement? 10 km South Displacement Distance Acceleration Momentum © OCR 2017

Vector or Scalar? 10 km South Vector © OCR 2017 Scalar Displacement

Which measurement? 10 m/s Displacement Speed © OCR 2017 Acceleration Momentum

Which measurement? 10 m/s Vector © OCR 2017 Scalar Speed

Scalar or Vector? 10 m/s 2 How fast velocity is changing Displacement Distance Acceleration Momentum © OCR 2017

Which measurement? 10 m/s 2 How fast velocity is changing Vector © OCR 2017 Scalar Acceleration

Which measurement? 10 Joules Power required for work Displacement Distance Acceleration Energy © OCR 2017

Which measurement? 10 Joules Power required for work Vector © OCR 2017 Scalar Energy

Which measurement? 10 kg How heavy something is Displacement Distance Acceleration Mass © OCR 2017

Which measurement? 10 kg How heavy something is Vector © OCR 2017 Scalar Mass

Which measurement? 10 Newtons The force on the mass of something Weight Distance Acceleration Mass © OCR 2017

Which measurement? 10 Newtons The force on the mass of something Weight Vector © OCR 2017 Scalar

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