Simple Machine - JSS2 Basic science Past Questions and Answers - page 1
What is a simple machine?
A complex mechanical device
A complex mechanical device
A high-tech gadget
None of the above
Which simple machine is commonly used in elevators?
Lever
Pulley
Inclined plane
Wedge
What is the function of a wedge?
To hoist flags
To cut or split objects
To provide mechanical advantage
To open and close blinds
Where would you typically find a screw?
In a seesaw
On a flagpole
In a jar lid
On stairs
What is the primary purpose of an inclined plane?
To lift heavy objects
To split objects
To make it easier to move objects up or down
To hold doors open
Which simple machine is commonly used in construction for lifting heavy objects?
Pulley
Wheel and axle
Screw
Wedge
What is the primary function of a wheel and axle?
To rotate objects
To convert rotational motion into linear motion
To change the direction of a force
To split objects
Which of the following is NOT an example of a simple machine?
Hammer
Scissors
Screwdriver
Elevator
What is the purpose of a pulley?
To cut objects
To split objects
To lift objects or change the direction of a force
To provide mechanical advantage
Which simple machine is commonly used in cutting tools like knives?
Screw
Wedge
Inclined plane
Lever