1. 7K Forces and their effects
Lesson
Learning objective
Before
After
7K.1 About forces
Identify forces as either pushes or pulls
Describe the effect of forces on an object
Descrieb the effect of balanced forces on stationary objects
State the unit used to measure force
Name the instrument used to measure force
Describe the effect of balanced forces on moving objects
Explain how a newtonmeter works
Explain why balanced forces have the effect they do on moving objects
Calculate the effect of combined forces acting on an object
7K.2 Weight
Describe what we mean by weight
Describe how to measure weight
Describe what we mean by gravity
Explain why gravitation force is less on the Moon than on the Earth
Describe what we mean by mass
Compare the masses and the weights of different objects
Explain why the force of a person's weight doesn't make them fall through the floor
7K.3 Friction
Describe what we mean by friction
Describe examples of where friction is useful in everyday life
Describe examples of where friction is not helpful in everyday life
Explain that friction always acts in the opposite direction to the movement
Explain how friction can be reduced
Describe drag as friction where things move through the air
Describe examples of where drag is useful
Describe how we can reduce drag
Explain how the size of the friction force changes with the size of the applied force
Explain how streamlining reduces drag
7K.4 Moving and stopping
Describe how brakes use friction
Describe how to calculate speed
Describe factors that affect stopping distance
Explain why its is important to have good treads on tyres
Use different units for speed
Use a distance-time graph to describe how objects are moving
Draw distance-time graphs to depict journeys
7K.HSW Gravity
Describe how Galileo used experiments to prove his ideas
Describe how Galileo's ideas were prove correct on the Moon
Explain how Newton used the idea of gravity to explain why things fall
Explain why new scientific ideas aren't always of benefit to people
Explain how later scientific evidence proved early ideas developed by Einstein
Student Target
Teacher Comment %
Level
Pretopic
Pretest