What is the primary function of a wedge as a simple machine?

• To lift heavy objects

• To push things apart

• To pull things together

• To rotate objects

Which of the following is NOT an example of a wedge?

• Knife

• Chisel

• Axe

• Screwdriver

How does the pointed nose of an airplane function as a wedge?

• It helps the airplane to lift off the ground

• It reduces air resistance

• It increases the speed of the airplane

• It stabilizes the airplane during flight

What is the purpose of a ship's bow being wedge-shaped?

• To enhance the ship's appearance

• To improve the ship's balance

• To reduce water resistance

• To increase the ship's speed

Why might the teeth of predators like lions be wedge-shaped?

• To make their roar louder

• To assist in cutting through flesh

• To help them run faster

• To help them chew their food more efficiently