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Simple Machines and Their Functions

Simple Machines and Their Functions

Assessment

Interactive Video

Physics

6th - 8th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains simple machines, which perform work with a single movement. It covers six types: lever, pulley, wheel and axle, inclined plane, screw, and wedge. Levers are divided into three classes based on the fulcrum's position. Pulleys, as modified levers, are used in systems like block and tackle. Inclined planes reduce force needed to move objects, with screws and wedges as variations. The tutorial highlights practical examples and applications of these machines.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a simple machine?

A machine that cannot be modified

A machine that does work with only one movement

A machine that combines several complex machines

A machine that requires multiple movements to perform work

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a type of simple machine?

Inclined Plane

Engine

Pulley

Lever

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

Between the input and output force

At the end of the lever

Closer to the input force

Closer to the output force

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which class of lever is a wheelbarrow an example of?

First-class lever

Second-class lever

Third-class lever

None of the above

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a fixed pulley?

A pulley that is attached to a moving object

A pulley that moves with the load

A pulley that is attached to a stationary object

A pulley that cannot be used with ropes

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a block and tackle system?

A single pulley system

A combination of fixed and movable pulleys

A type of lever

A type of inclined plane

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a screw function as a simple machine?

By using a grooved wheel

By rotating around a fixed point

By sliding on a flat surface

By wrapping an inclined plane around a post

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