Exploring Levers and Inclined Planes

Which of the following is an example of a lever?

• A ramp

• A seesaw

• A screw

• A pulley

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What is the main purpose of using an inclined plane?

• To lift objects vertically

• To reduce the amount of force needed to move an object

• To change the direction of a force

• To increase the speed of an object

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Which simple machine is used in a wheelbarrow to make lifting easier?

• Pulley

• Lever

• Wedge

• Screw

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How does an inclined plane make work easier?

• By increasing the distance over which a force is applied

• By decreasing the distance over which a force is applied

• By changing the direction of the force

• By increasing the force needed

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Which of the following is NOT a type of lever?

• First-class lever

• Second-class lever

• Third-class lever

• Fourth-class lever

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What is the function of a fulcrum in a lever?

• To provide a surface for sliding

• To act as the pivot point

• To increase the weight of the load

• To decrease the length of the lever

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Which of the following is an example of an inclined plane?

• A ladder

• A doorknob

• A flagpole

• A knife

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In a lever, what is the term for the force applied to move the load?

• Load force

• Effort force

• Resistance force

• Friction force

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Which simple machine would you use to split a log?

• Lever

• Pulley

• Wedge

• Wheel and axle

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What happens to the force needed to move an object when using a longer inclined plane?

• The force increases

• The force decreases

• The force remains the same

• The force doubles

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