Simple Machines Science Olympiad

Identify this simple machine

• Lever

• Wheel & Axle

• Inclined Plane

• Screw

a simple machine that makes it easier to lift or move objects; has a fulcrum

• fulcrum

• screw

• lever

Tags

NGSS.MS-PS2-2

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

Which is not a type of simple machine?

• spring

• screw

• pulley

• wedge

What type of simple machine is a ramp?

• Lever

• Inclined plane

• Pulley

• Screw

Answer explanation

A ramp is classified as an inclined plane, which is a flat surface tilted at an angle to help lift objects with less effort. This makes it easier to move heavy items upward compared to lifting them straight up.

What simple machines are found in the following?

a

b

c

Screw, wedge, and wheel & axle

Wedge, wheel & axle

Lever, wedge and wheel & axle

Tags

NGSS.MS-PS2-1

Which of the following is an example of a wheel and axle?

• Door knob

• Hammer

• Nail

• Rope

Answer explanation

A door knob is an example of a wheel and axle because it consists of a circular knob (wheel) that turns around a central shaft (axle), allowing for easy opening and closing of doors.

Which of the following is an example of a lever in daily life?

• Scissors

• Light bulb

• Computer

• Clock

Answer explanation

Scissors are a classic example of a lever, where the blades act as the arms and the pivot point is the screw. This allows for the efficient cutting of materials, demonstrating the lever's principle of mechanical advantage.

Which simple machine is commonly used in a bottle cap?

• Lever

• Pulley

• Screw

• Wedge

Answer explanation

A bottle cap uses a screw mechanism to secure the cap tightly onto the bottle. The threads on the cap and the bottle create a helical structure, which is characteristic of a screw, allowing for easy opening and closing.

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.