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This Science quiz is called 'Forces 2' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.
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You've learned about all the different forces which act on objects. Friction (which slows things down), gravity (which pulls things towards the Earth or other large body), magnetism (which attracts certain metals and repels opposite magnetic poles), air resistance and water resistance (which both drag on moving objects) - these are all different types of pushes and pulls. Now see if you can recognize which forces are in action in different situations.
Can you spot the forces at work? Is it magnetism or gravity, or could it be upthrust? Challenge yourself with this science quiz about forces.
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Water resistance slows things down, just like air resistance
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Air resistance and water resistance are both types of friction - air resistance is the friction an object experiences when moving through air and water resistance is the friction an object experiences when moving through water
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Upthrust is the force that prevents the boat from sinking. All objects on Earth experience gravity all of the time
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The push comes from the rowing of the oars pushing the boat forwards through the water
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Gravity is always being exerted on objects, air resistance results from moving through the air, and friction results from the shoe's 'grip' on the pedals. The cyclist pushes down on the pedals (through the shoes) and pulls up after each push
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Although it can be hard to imagine, the road is exerting upthrust on the bike's tires - this is the force that prevents the bike from sinking through the road!
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Gravity pulls the parachute down and air resistance slows its fall
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Gravity pulls the child downwards, friction from the slide and air resistance both slow the child down
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At the top of the slide gravity is countered by upthrust
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Aerodynamic objects have less friction with the air and so are slowed less by air resistance
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