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8th Grade

14 Qs

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Assessment

Quiz

Science, Physics, Other Sciences

8th Grade

Hard

Created by

Maryam Munir

FREE Resource

14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a physical system?

A group of parts that function together to perform a specific task

A group of components that work together to perform a function

A device that requires a single force to work

A group of people joining together to perform tasks

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the force that resists the movement of objects sliding or rolling over one another?

Compressive force

Frictional force

Rotational force

Tensile force

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the unintended or undesired output of a system called?

Input

Output

Side Effects

Subsystem

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the force that holds a motionless object where it is, preventing it from being moved across another object's surface?

Rotational force

Compressive force

Tensile force

Frictional force

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of machines? 
To recapture lost energy of prevent energy from escaping in the first place
To reduce the amount of friction between two sliding parts
To measure of how strong force is
To help us use energy more efficiently/ do work easier. 

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is not an input for a car?
Applying force on the gas pedal 
Movement 
Turning the steering wheel 
Gasoline

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image
What is friction? 
The force that resists motion between two objects in contact
The mechanical advantage in a “perfect” world
The moment when a specific technological shift hits mainstream society
A substance that helps parts of a system work efficiently 

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