Simple Machine and Complex Machine

Which statement is correct?

• Inclined plane: enables us to moves the objects from one level to a higher level

• Gear: Separates, cuts, holds, and stops objects

• Screw: Helps to lift up and moves objects easily

• Pulley: Moves and rotates objects

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is this simple machine?

• Inclined Plane

• Lever

• Gear

• Wheel and axle

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the simple machine that used by the boy to take water?

• Lever

• Incline plane

• Pulley

• Gear

Tags

NGSS.MS-PS2-1

Garden scissors is a type of simple machine __________ to trim trees.

• Wedge

• Wheel and axle

• Pulley

• Lever

What type of simple machine is a seesaw?

• Inclined plane

• Lever

• Pulley

• Wheel and axle

Answer explanation

A seesaw is a type of lever, which consists of a rigid bar that pivots around a fulcrum. It allows for the lifting of one side when weight is applied to the other, demonstrating the principles of leverage.

What simple machines are found in the following?

a

b

c

Lever, wedge and wheel & axle

Wedge, wheel & axle

Screw, wedge, and wheel & axle

Which of the following is a type of simple machine?

• Lever

• Engine

• Battery

• Circuit

Answer explanation

A lever is a type of simple machine that helps lift or move loads with less effort. Unlike an engine, battery, or circuit, which are more complex systems, a lever operates on the principle of mechanical advantage.

What type of simple machine is used in a pair of tongs?

• Pulley

• Lever

• Wheel and axle

• Inclined plane

Answer explanation

Tongs operate as a lever, where the pivot point allows the user to apply force on one end to grip objects on the other end. This makes 'lever' the correct choice for the type of simple machine used in tongs.

A worker is facing difficulty to carry boxes out of the lorry. Which simple machine can help the worker?

• Lever

• Wedge

• Inclined plane

• Gear

Tags

NGSS.MS-PS2-1

The fixed point on the lever is called

• load

• resistance

• bar

• fulcrum

Tags

NGSS.MS-ETS1-1