Forces and Buoyancy

Forces and Buoyancy

Assessment

Flashcard

Physics

7th Grade

Hard

Created by

hashim nadeem

FREE Resource

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79 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is buoyancy?

Back

Buoyancy is the upward force that water exerts on an object that is submerged in it, causing the object to float.

2.

FLASHCARD QUESTION

Front

Who discovered the principle of buoyancy?

Back

Archimedes, an Ancient Greek mathematician.

3.

FLASHCARD QUESTION

Front

What happens when an object displaces more water than its own weight?

Back

The object will float.

4.

FLASHCARD QUESTION

Front

What is the relationship between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

5.

FLASHCARD QUESTION

Front

How is weight measured?

Back

Weight is measured in Newtons (N).

6.

FLASHCARD QUESTION

Front

What is the formula to calculate weight?

Back

Weight = mass × g, where g is the gravitational field strength.

7.

FLASHCARD QUESTION

Front

What is the gravitational field strength on Earth?

Back

Approximately 9.8 N/kg.

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