In this topic we will build on key knowledge learnt on forces and their effects on objects. We will investigate how forces can change an object's speed whilst linking key understanding of mathematical calculations to explain the changes.
Task 1: Use look, cover, write check to learn the answers to the core questions and the keywords for this topic
Task 2c: Make notes that:
Identify what forces can do to an object.
Describe what happens when the forces are unbalanced.
Define resultant force.
Calculate resultant forces.
Explain how resultant force affects speed.
Task 2d: Complete forces worksheet.
Task 3c: Calculate the answers to these questions
A car travels 30 miles in 2 hours, what is its speed?
An aeroplane travel 2000 miles in 4hours, what is its speed?
A motorbike travels 45 miles in 15 minutes, what is its speed (hint change the minutes to hours!!)
A bike travels 4 miles in half an hour, what is its speed?
A BMW convertible travels at a speed of 64 km/h for 45 minutes, what distance does it travel?
A learner driver travels at a speed of 3km/h for an hour and a half. What distance does it travel?
15mph
500mph
180mph
8mph
48km
4.5km
A Morrison’s fuel truck is travelling at a speed of 5 m.p.h for 5 minutes, what distance does it travel? (hint to go from minutes to hours, divide the minutes by 60)
If an aeroplane travels at 5000 m.p.h for an hour and 45 minutes, what distance does it travel?
How long does it take a car travelling at 60 m..p.h to cover 5 miles?
How long does it take Lewis Hamilton travelling at 156 m.p.h to cover 16 miles?
How long does it take my mum to walk 5 metres if is she is travelling at a speed of 1 km/h. (Hint to change metres to kilometres divide the metres by 1000)
7 . 0.41miles
8. 8750miles
9. 0.083 hours (5 minutes)
10. 0.1 hours (6 minutes)
11. 0.005hours = 18seconds
Task 3d: Complete the progress quiz
Task 4b: Make notes that:
Explain how to calculate speed using a formula.
Explain how to calculate speed using distance-time graphs.
Describe the motion of an object when:
The graph is flat
The graph is getting higher
The graph is getting lower
Task 4c: Complete the distance time graph sheet
Task 4c: Complete the exam questions
Task 5c: Make notes that:
Describe how the speed of an object varies when measured by observers who are:
Not moving
Moving away from the object.
Define relative motion.
Suggest how the motion of two objects moving at different speeds in the same direction would appear to eachother.
Task 6b: Make notes that:
Give the formula used to calculate speed.
Plan a practical to investigate how the speed of a trolley changes as it rolls down a ramp.
Explain how to predict changes in an object’s speed when the forces acting on it changes.
Task 6c: Complete the exam questions
Task 7b: Complete the seneca learning units.
Task 7c: Make a mind map or single page revision summary of this topic and add it to your revision folder
Task 8: Complete end of unit quiz