1.  Place the answer on your new quiz paper

2.  _________________ attracts all objects toward each other.  A: Gravity!

3.  The measure of the force of gravity on an object.  A: Weight

4.  Says that every object in the universe attracts every other object.  A: Law of Universal Gravitation

5.  The tendency of an object to resist a change in motion.  A: Inertia

6.  The amount of matter in an object  A: mass (measured in kg)

7.  A push or a pull  A: Force (like gravity!)

8.  An object at rest will stay at rest and an object in motion with a constant speed and direction unless acted on by a force.  A: Newton’s 1 st law of motion

9.  What 2 factors does the strength of gravity depend on?  A: 1. mass  2. Distance

10.  What 2 factors keep a planet in orbit around the sun? Write these factors on the lines below and label the diagram with the 2 factors in the boxes.  A: 1 Inertia  2. Gravity

11. WWhy does the moon have phases? AA: Because the relative positon of the earth, moon and sun change and we can see the ½ lit side of the moon in phases.

12.  Why do we see the same side of the moon the entire lunar month?  A: Because the moon rotates on its axis the same amount of time that it orbits our earth.

13.  Two types of eclipses are:  A: Lunar and Solar  Lunar: Solar:

14.  Below is a lunar phase diagram. There are 2 boxes that are not filled in and these two positions show the new moon phase and the full moon phase. Label these 2 boxes correctly. New Moon Full moon

15.  Notice the axis tilt of Earth. If you lived in the Northern hemisphere, which season would you be experiencing right now? If you lived in the southern hemisphere, which season would you be experiencing right now? How do you know? A: NH- summer SH- winter The northern Hemisphere is Pointing to the sun and getting direct sunlight. The opposite is true for the southern hemisphere.