What question does the text ask about a machine's work?

• How fast is the machine?

• How much work is it doing for you?

• How expensive is the machine?

• How heavy is the machine?

What is mechanical advantage?

• The amount by which a machine can multiply the force.

• The speed at which a machine operates.

• The weight a machine can lift.

• The size of a machine.

What is the output force in the context of mechanical advantage?

• The force the machine applies.

• The force you apply.

• The speed of the machine.

• The weight of the machine.

What does mechanical advantage compare?

• Size of the load compared to the effort force.

• Speed of the machine compared to its size.

• Energy used compared to the time taken.

• Weight of the machine compared to its height.

What is the mechanical advantage of the lever if the effort force is 500 N and the load force is 2500 N?

• 1

• 2

• 5

• 10

What is the relationship between effort force and load force in a lever?

• Effort force is always greater

• Load force is always greater

• Effort force can be less than load force

• They are always equal

What is the purpose of using a lever in the diagram?

• To reduce the effort needed

• To increase the distance

• To change the direction of force

• To increase speed

Which of the following statements is true about first-class levers?

• The fulcrum is between the effort and the load

• The load is between the effort and the fulcrum

• The effort is between the load and the fulcrum

• The fulcrum is at the end of the lever

Which of the following best describes a first-class lever?

• A lever with the fulcrum between the effort and the load

• A lever with the load between the effort and the fulcrum

• A lever with the effort between the load and the fulcrum

• A lever with no fulcrum

What role does the fulcrum play in a lever system?

• It increases the load force.

• It acts as the pivot point.

• It decreases the effort force.

• It is where the load is applied.