Quiz 5

Vinnie Caringella           

2-6-13

Astronomy

Quiz #5

1.

¨  Speed = distance / time

¨  Speed & direction => velocity

¨  Change in velocity => acceleration

¨  Momentum = mass x velocity

¨  Force causes change in momentum, producing acceleration

2.

¨  Mass = quantity of matter

¨  Weight = force acting on mass

3.

¨  He discovered laws of motion & gravitation

¨  He realized these same laws of physics were identical in the universe and on Earth

4.

1.  Object moves at constant velocity if no net force is acting.

2.  Force = mass × acceleration

3.  For every force there is an equal and opposite reaction force

5.

¨  December 25,1642

6.

¨  January 8, 1642

7.

¨  YES

8.

¨  Speed: Rate at which an object moves

9.

¨  Velocity: Speed and Direction

10.

¨  Acceleration: Any Change in Velocity