Physics

3. A tendency of matter to change its shape, area, volume, and density in response to a change in temperature, usually not including phase transitions.
4. An object that is propelled by external force and then moves freely under the influence if gravity and air resistance
7. A product that involves with mass and velocity, that possess a magnitude and a direction
9. A propriety that transferred to a body or physical system that is in the form of heat and light.
11. Pressure that is applied to an enclosed fluid and is transmitted without a charge in magnitude to every point of the fluid and then to the walls of the container
12. Particles that exert attractive forces when it's but repulse if it's the same
14. A combination of direction with a motion's object that has speed.
15. Connecting wires to complete a current
16. A direct contact of two objects that hit each other
19. A force that is needed to expand or compress a spring by distance in a straight line.

1. A theory that describes how the universe began and expanded for billions of from density and temperature
2. A push or pull on an object with mass causing it to change its speed or direction
5. A rotational analogue of linear force
6. A force which gives a mass of 1 kilogram an acceleration of 1 meter per second squared.
8. a light/object bouncing off of a polished surface and changes direction as a result
9. An object resists a distorting influence and return to its normal size and shape
10. A collection of gas, dust, and billions of stars and their solar systems held by gravity
13. A reaction that involves two or more nuclei to form one or more different atomic nuclei and subatomic particles
17. Longitudinal waves that travel through air or water and is measured in amplitude, intensity, or frequency
18. A powerful luminous explosion of a star that occurs during the last evolutionary stages of a massive star.