Science Exam PQ 2nd term 2024-25

Which of the following is NOT a simple machine?

• Inclined Plane
• Pulley
• Lever
• Car

What is the fulcrum in a lever system?

• The fulcrum is the force applied to the lever.
• The fulcrum is the load being lifted.
• The fulcrum is the distance between the load and the effort.
• The fulcrum is the pivot point of a lever.

Which simple machine is used in a staircase?

• Wheel and axle
• Lever
• Pulley
• Inclined plane

In a first-class lever, where is the fulcrum located?

• The fulcrum is located between the effort and the load.
• The fulcrum is located at the load's position.
• The fulcrum is located at the effort's position.
• The fulcrum is located at one end of the lever.

Which class of lever has the effort between the fulcrum and the load?

• Class 3 lever
• Class 4 lever
• Class 2 lever
• Class 1 lever

Which of the following is NOT a part of a lever system?

• Pulley
• Wheel
• Inclined Plane
• Wedge

What is the primary function of a pulley?

• To reduce friction in machines.
• The primary function of a pulley is to lift heavy objects.
• To change the direction of a force.
• To store energy for later use.

Which of the following is NOT a type of pulley?

• screw pulley
• fixed pulley
• movable pulley

• compound pulley

What is the primary function of an inclined plane?

• To change the direction of a force applied.
• To reduce the amount of force needed to lift an object.
• To create a frictionless surface for sliding.
• To increase the speed of an object.

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

• A lever
• A wheel
• A ramp
• A flat surface