POF - Introduction

Question 1

What is acceleration?

Answer 1

Acceleration is the rate of change of velocity.

Question 2

What is mass?

Answer 2

It is the measure of the amount of matter within an object.

Question 3

What is the first law of motion?

Answer 3

An object will remain at rest or in motion unless acted upon by an external force.

Question 4

What is the second law of motion?

Answer 4

Acceleration of an object is proportionate to the force applied, however it is inversely proportionate to the mass of the object.

Question 5

What is the third law of motion?

Answer 5

For every reaction, there is an equal or opposite reaction.

Question 6

What is the formula for Force?

Answer 6

F = m•a

F: Newton

m: Kg
a: m/s^2

Question 7

What is weight?

Answer 7

Weight is the force that a mass exerts within a gravitational field.

Question 8

What is the formula for Weight?

Answer 8

Weight = m•g

Weight: Newton

mass: Kg
g: m/s^2

Question 9

What is Earth’s gravitational field?

Answer 9

9.81 m/s^2 however it is normally rounded to 10.