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Matter and Energy -  Semester Test

Matter and Energy - Semester Test

Assessment

Flashcard

Science

9th Grade

Practice Problem

Hard

Created by

Wayground Content

Used 1+ times

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

Front

What is the scalar quantity that measures the distance traveled per unit time?

Back

Speed

2.

FLASHCARD QUESTION

Front

What class of lever is used when the input force is applied between the fulcrum and the output force?

Back

Class 3 lever

3.

FLASHCARD QUESTION

Front

What is the SI unit of work?

Back

Joule

4.

FLASHCARD QUESTION

Front

How do you calculate the efficiency of a machine?

Back

Efficiency = (Work Output / Work Input) x 100%

5.

FLASHCARD QUESTION

Front

What force opposes the relative motion of two surfaces in contact?

Back

Friction

6.

FLASHCARD QUESTION

Front

What is the definition of energy?

Back

The capacity to do work.

7.

FLASHCARD QUESTION

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

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