SCIENCE

3. First experimented the nature of heat.
6. Forces which particle of system exert on one another.
8. Force needed to produce a unit of elongation or compression of a spring or rubber.
11. When two or more bodies come in contact with each other.
13. A truck accelerates uniformly from 12m/s to 30m/s in 2s. Determine the force of the car.
14. It is always conserved in all types of Collision.
15. The ability/capacity to do work.
16. Experimentally determined the mechanical work needed to produce a given amount of heat.
18. Smaller unit of Joule
19. A device that converts heat energy to mechanical work.

1. Force pulling you to the center.
2. The product of force and displacement.
4. Study of transformation of energy in various forms.
5. A centimeter-gram-second unit of force.
7. When the object is launched horizontally, the angle of projection is ____.
9. Known as combined cooling, heating and power.
10. Momentum has equivalent units of ______.
12. "Father of Passive Safety"
17. A man pulls his wooden cart with a distance of 24m and has a done a total work of 480j. Find the force exerted by the boy.
20. The path of projectile which follows a parabola.