Forces presentation
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Transcript of Forces presentation
![Page 1: Forces presentation](https://reader037.fdocuments.in/reader037/viewer/2022102717/55896e3dd8b42a6d7a8b45e9/html5/thumbnails/1.jpg)
Balanced & unbalanced forces
WALT: To calculate the resultant force acting on an object
1st task… Name THREE forces and describe the effect of each force
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By the end of the lesson we…
Must…Describe the effect of different forcesShould…Explain the term ‘balanced forces’Could…Explain the term ‘unbalanced forces’Calculate the resultant force
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Balanced and unbalanced forces
• If two forces are acting on an object in opposite directions, the object will move in the direction of the larger force.
• If the two forces are the same size but in opposite directions, they balance out. These forces are called balanced forces.
Video Clip
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50 Newtons 30 Newtons 16 Newtons
25 Newtons
300 Newtons
100 Newtons
Unbalanced Forces
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Balanced Forces
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Balanced & unbalanced forces
• Pushes and _________ are forces.
• The force of gravity pulling towards the Earth is called ___________.
• An object placed in water has a force called ________ pushing up on it.
• When the forces acting on an object are equal and opposite, they are called ___________ ______.
• If the forces are balanced, the object will stay still or carry on at the same speed in the same direction.
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Quick Re-cap
Switch on your Qwizdom handsets
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If two different forces are acting on an object in opposite directions,
the object will:
A) Stay in the same placeB) Move in the direction of the larger
forceC) Move in the direction of the weaker
force
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Enter the correct answer
• The forces on a person are _________
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Choose all that apply....If the forces are balanced an object will:
A) Stay stillB) Slow downC) Carry on at same speed in the same
direction
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Forces posterYour task…
Produce a poster about what you have learnt so far about forces
Level 3: Explain what forces are
Give meanings and examples of forces, draw a force diagram e.g. of a fish
Level 4: Explain balanced & unbalanced forces
Explain what happens in a tug of war. How does a car keep at a steady speed? Draw force diagrams to help explain both
Level 5: Explain what density is & how it is measured
Draw a force diagram showing the forces acting on an object in water
HOMEWORK