Test: Simple Machines - JAMB MCQ

A screwdriver is an example of a simple machine known as a lever. It consists of a handle (effort arm) and a shaft with a flat or Phillips head (load arm). By applying a force on the handle, the screwdriver can be used to exert a larger force on a screw, making it easier to rotate.

A wheelbarrow consists of a wheel connected to an axle. When the wheel rotates, it helps to carry heavy loads with reduced effort. Therefore, a wheelbarrow is an example of the simple machine known as the wheel and axle.

A wedge is a simple machine that is used to split or separate objects apart. It has a sharp, pointed edge that allows it to exert a large force over a small area, making it effective for tasks such as cutting or splitting.

An inclined plane is a simple machine that reduces the amount of force needed to move an object by increasing the distance over which the force is applied. It allows the force to be spread out over a longer distance, making the work easier.

A flagpole is an example of a pulley system. Pulleys consist of a wheel with a groove that a rope or cable can be threaded through. In the case of a flagpole, the rope allows the flag to be raised and lowered.

A lever is a simple machine that reduces the amount of force needed to lift heavy objects. By applying a smaller force over a longer distance from the fulcrum, the lever magnifies the force, making it easier to lift the object.

A pair of scissors utilizes a wedge-shaped blade that moves against another surface to cut materials. The action of the wedge-shaped blade splitting materials is what allows scissors to work effectively.

A pulley system reduces the amount of force needed to lift heavy loads by distributing the load's weight over multiple ropes or cables. This mechanical advantage makes it easier to lift the load using less force.

A seesaw is an example of a lever, a simple machine. It consists of a beam that pivots on a fulcrum, with two people sitting on either end. The movement of one person causes the other end to move in the opposite direction.

A door hinge utilizes a screw mechanism to attach the door to its frame. The rotational movement of the screw allows the door to swing open or closed while remaining securely fixed to the frame.