Mechanical Systems Quiz

Which of the following is an example of a lever?

• Seesaw

• Screwdriver

• Pulley

• Wheelbarrow

Identify the pulley around you

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How does a lever make work easier?

• By decreasing the distance needed to move an object

• By making the object move in the opposite direction

• By increasing the amount of force needed to move an object

• By allowing a person to apply a smaller force over a longer distance to move an object with a larger force over a shorter distance.

What is the function of gears in a machine?

• Predict the weather

• Transmit motion or change speed/torque

• Cook food

• Play music

Describe how a lever can be used to lift heavy objects.

• By attaching balloons to the lever to make it float and lift the heavy object effortlessly.

• By painting the lever a bright color to make it more appealing to the heavy object.

• By shouting loudly at the lever to scare the heavy object into lifting itself.

• By applying a force on one end of the lever, creating a moment that lifts the heavy object on the other end.