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Work and Simple Machines

Authored by Lisa Thompson

Science

8th Grade

NGSS covered

Work and Simple Machines
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25 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Which type of lever is this with the fulcrum in the middle?

First

Second

Third

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Work = force x _______________

energy

height

distance

sunlight

Tags

NGSS.HS-PS2-1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A screw is an inclined plane wrapped around a cylinder.

True

False

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is a simple machine that has 2 incline planes back to back?

incline plane

screw

fulcrum

wedge

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

How does a fixed pulley allow you to decrease your effort?

Increases the pull weight of the object being lifted

Decreases the amount of distance of applied force

Increases the distance and direction of the applied force

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is an example of work being done?

standing at your desk

holding a 100-pound barbell

pushing against a stationary wall

pushing a lawnmower 100 yards

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is an example of NO work being done?

holding an object still above the floor of a room

lifting an object from the floor of the room

pushing an object across the floor of a room

bouncing an object on the floor of a room

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