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In this unit pupils:
- consolidate and build on their concept of force and its measurement
- identify the origin of friction, air resistance, upthrust and weight and describe situations in which these forces act
- distinguish between mass and weight
- use the concept of speed
- relate forces acting to changes in motion
- identify situations in which forces are balanced and unbalanced
In scientific enquiry pupils:
- consider why it is important to repeat measurements
- measure distance, time and force including weight
- construct and interpret line graphs and use them to make predictions
- investigate floating in water of varying salinity, ensuring relevant variables are controlled
- investigate friction between solids, ensuring relevant variables are controlled
This unit is expected to take approximately 8 hours.
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