Simple Machines Quiz 12/08/23

What is a lever?

• A type of fruit

• A simple machine consisting of a rigid bar that pivots on a fixed point and is used to transmit force.

• A musical instrument

• A type of clothing

What is the function of a pulley?

• To clean windows more efficiently

• To lift heavy objects by changing the direction of the force needed to lift the object.

• To cook food faster

• To make music louder

How does a wheel and axle make work easier?

• It only works in specific weather conditions

• It reduces friction and allows for the transfer of force over a greater distance.

• It increases friction and makes it harder to transfer force

• It has no effect on friction or force transfer

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What is an inclined plane?

• A musical instrument

• A flat surface tilted at an angle

• A type of fruit

• A form of transportation

How does a wedge work?

• By multiplying the force applied

• By converting a force into two forces acting in opposite directions

• By reducing the force applied

• By changing the direction of the force

What is a compound machine?

• A machine made up of two or more simple machines working together

• A machine that doesn't use any simple machines

• A machine made up of only one simple machine

• A machine that is too complex to be understood

Which simple machine is a seesaw an example of?

• wheel and axle

• pulley

• lever

• screw

How does a fixed pulley make work easier?

• It increases the amount of force applied

• It decreases the amount of force applied

• It has no effect on the force applied

• It changes the direction of the force applied

What is the purpose of a compound simple machine?

• To make work harder by combining two or more simple machines to decrease mechanical advantage.

• To make work the same as using a single simple machine, with no added benefit.

• To have no purpose at all, it's just a random combination of simple machines.

• To make work easier by combining two or more simple machines to increase mechanical advantage.

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Which of the following is NOT one of the things a machine can do?

• Changes the amount of force required.

• Changes the distance over which the force is exerted.

• Changes the direction of the force.

• Changes the amount of work done.

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