| Question | Answer |
| Who was the physicist who discovered the laws of motion? | Isaac Newton.
|
What is gravity? | the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
| What is inertia? | A property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.
| What is velocity? | The speed of something in a given direction.
| What is acceleration? | The increase in the rate or speed of something. |
