Year 3 Science (Force and Friction)

Which force pulls objects towards the ground

• Gravity
• Air resistance
• Magnetism
• Friction

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Which of these surfaces would create the most friction for a cyclist riding their bike?

• Sand
• Concrete
• Polished wood
• Gravel

Which force acts as resistance when one object moves against another?

• Magnetism
• Friction
• Gravity
• Air resistance

You design an experiment to see how far an object moves on ramps of different surfaces. What must you do to keep the test fair?

• Keep the object the same for all of the ramps.
• The ramps must all be the same length.
• The object must have the same starting point each time.
• All of the above.

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What is motion?

• Changing size.
• Holding still
• Moving from one place to another.
• Changing shape.

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How does friction affect speed?

• more friction decreases speed
• more friction increases speed
• less friction decreases speed
• less friction doesn't affect speed

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Friction is a force that acts in an ___________ direction of movement.

• similar
• opposite
• parallel
• west

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What does friction produce?

• light
• sound
• heat
• gravity

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What is force?

• A force is a push or a pull upon an object resulting from the object's interaction with another object.
• something used in Star Wars 
• It is the amount of space between two points.
• It is Superman's power

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What surface would have the most friction?

• Glass
• Marble
• Pool table
• Sandpaper