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F=ma Quiz Prep
Newton's 3 laws
Question | Answer |
---|---|
What is the formula for Newton's 2nd Law? | F=ma |
What is Newton's 1st Law? | A body at rest will stay at rest and a body in motion will stay in motion unless acted upon by an unbalanced force. |
What is the unit we use for mass? | Kilograms or kg |
What is the unit for Force | Newtons or N |
What is the unit used for acceleration? | Meters per second squared m/s2 |
A car that changes speed- slows down or speeds up or changes direction is doing this. | acceleration |
A car that is stopped and not moving or moving at a constant speed in a straight line is not doing this. | acceleration |
What does friction do to a ball rolling in the grass? | The ball slows down. |
An example of Newton's 3rd law: action vs reaction that involves a rocket could be described as this. | The fuel in the rocket pushed down towards the earth, the earth responds by pushing back at the rocket and pushes the rocket upward. |
What does mass have to do with acceleration? | The more the mass the more force will have to be applied for an object to accelerate . The less the mass of an object, the less forces will have to be applied for an object to accelerate. |