book or other object along a bench, Recall the unit for measuring forces. or the force they can exert with their Describe how to use a force meter, little fingers. newtonmeter. State what is meant by: mass, weight. Explaining: Cycle helmets Recall the direction in which gravity Discuss the differing views on the use acts. of cycle helmets. Many people Identify situations and places where consider that they may do more harm different forces are likely to be found. than good. Opposing views may be Represent sizes and directions of found on the Internet. forces using arrows. Explain the difference between mass Plenary: Thinking about forces and weight. Odd One Out: friction, gravity, Exceeding magnetism. (Possible answers: Compare the way in which force friction is the only contact force and meters and balances that compare is the only one that always tries to masses work. slow things down; magnetism is the only one that can push or pull; gravity is the only one that gives us weight.) Lesson 7Kb: Springs Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Starter: Jumping high Exploring: Resources Present data Students Recall the effects of forces on an Ask students to suggest how they can Investigating from 7Kb in scatter investigate the object. make the highest jump possible. This stretching Exploring graphs. stretching Explain how a force has caused certain could be done by asking them to Students can plot Science. characteristics effects on an object. sketch a labelled diagram. Show the scatter graphs to Draw lines of of various State what is meant by extension, sketches and ask what all the ideas determine the best fit on materials (e.g. compress, stretch, elastic, plastic. have in common. elastic limit and scatter springs and Securing limit of graphs. elastic bands) Describe how the extension of a spring Exploring: Investigating stretching proportionality to find out depends on the force applied. Students investigate the stretching for the springs. whether a Explain what is meant by elastic limit, characteristics of various materials material limit of proportionality. (e.g. springs and elastic bands) to stretches in a Exceeding find out whether a material stretches linear or
Recall the unit for measuring forces. Describe how to use a force meter, newtonmeter. State what is meant by: mass, weight. Recall the direction in which gravity acts. Identify situations and places where different forces are likely to be found. Represent sizes and directions of forces using arrows. Explain the difference between mass and weight. Exceeding Compare the way in which force meters and balances that compare masses work. book or other object along a bench, or the force they can exert with their little fingers. Explaining: Cycle helmets Discuss the differing views on the use of cycle helmets. Many people consider that they may do more harm than good. Opposing views may be found on the Internet. Plenary: Thinking about forces Odd One Out: friction, gravity, magnetism. (Possible answers: friction is the only contact force and is the only one that always tries to slow things down; magnetism is the only one that can push or pull; gravity is the only one that gives us weight.) Lesson 7Kb: Springs Learning objectives Exemplar teaching activities Differentiation Resources Maths skills Practical skills Developing Recall the effects of forces on an object. Explain how a force has caused certain effects on an object. State what is meant by extension, compress, stretch, elastic, plastic. Securing Describe how the extension of a spring depends on the force applied. Explain what is meant by elastic limit, limit of proportionality. Exceeding Starter: Jumping high Ask students to suggest how they can make the highest jump possible. This could be done by asking them to sketch a labelled diagram. Show the sketches and ask what all the ideas have in common. Exploring: Investigating stretching Students investigate the stretching characteristics of various materials (e.g. springs and elastic bands) to find out whether a material stretches Exploring: Investigating stretching Students can plot scatter graphs to determine the elastic limit and limit of proportionality for the springs. Resources from 7Kb Exploring Science. Present data in scatter graphs. Draw lines of best fit on scatter graphs. Students investigate the stretching characteristics of various materials (e.g. springs and elastic bands) to find out whether a material stretches in a linear or
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