Unit 3 Newtons Laws of Motion Flashcard

Front

An object at rest will stay at rest and an object in motion will stay in straight line motion unless acted on by a force. Which one of Newton's Laws of Motion? Options: 4th Law of Motion, 1st Law of Motion, 3rd Law of Motion, 2nd Law of Motion

Back

1st Law of Motion

Front

Which law explains when a magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them?

Back

Law 1

Front

A person steps out of the boat and onto the dock. As the person moves forward onto the dock, the boat moves backward. Which statement best describes the backward motion of the boat as the person steps forward? Options: For every action there is an equal and opposite reaction., Every mass exerts a force on every other mass., An object at rest tends to stay at rest., Friction opposes the motion of an object.

Back

For every action there is an equal and opposite reaction.

Front

What is the unit for force?

Back

Newton

Front

Speed in a direction is called

Back

Velocity

Front

Which law explains why when you put a book on a table the table pushes on the book? Options: 3rd law, 4th law, 1st law, 2nd law

Back

3rd law

Front

A 10 kg object accelerates at 15 m/s². How much force was applied?

Back

150 Newtons

Front

Why is the net force 0 in the image?

Back

Because they are both pulling the same amount of force in opposite directions

Front

Why is the net force 0 in the image?

Back

Because they are both pulling the same amount of force in opposite directions

Front

What is the speed of an object that travels 20 meters in 4 seconds?

Back

5 m/s