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Using a force meter. KS3 Forces. Using a force meter. TASK. Write down the questions, leaving a line for your answers… What is the reading shown on the force meter? Which unit does the N represent? Which force is attracting the sack downwards?. Using a force meter. TASK.
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Using a force meter KS3 Forces
Using a force meter TASK • Write down the questions, leaving a line for your answers… • What is the reading shown on the force meter? • Which unit does the N represent? • Which force is attracting the sack downwards?
Using a force meter TASK Now fill in your answers;
Answers • What is the reading shown on the force meter? • 120N – don’t forget your units. • Which unit does the N represent? • Newton – it has a capital letter because it is named after a person. • Which force is attracting the sack downwards? • Gravity – this causes objects to have weight.
TASK Write down the information to help you to remember. Using a force meter Weight is a downward force due to gravity. Mass is the amount of matter (stuff) that makes up your body.
Using a force meter TASK Use the information below to draw a scatter graph. Remember to choose your scale carefully, and to include the correct units!
Plenary/ Review A graph to show the length of thumbs and the force of the finger-thumb squeeze • Name the 3 variables in this investigation. • What relationship is there between thumb length and finger-thumb squeeze force? • Is finger-thumb strength affected by whether you are a boy or a girl? Explain your answer. X Girl X Boy Finger-thumb squeeze (N) Thumb length (cm)
Plenary Answers A graph to show the length of thumbs and the force of the finger-thumb squeeze • Thumb length • Finger-thumb squeeze • Gender • 2. None! • 3. No, boys and girls are all spread out over the graph X Girl X Boy Finger-thumb squeeze (N) Thumb length (cm)