SPH4U Crossword

4. Direction and magnitude
7. Found by calculating the area under a velocity-time graph
9. The Newton law that says for every action, there is an equal and opposite reaction
12. The total momentum before a collision is equal to the total momentum after the collision (3 words)
13. The number of cycles per unit of time
14. Law that describes an object's resistance to its change in motion
15. A force that opposes the motion of an object as it moves across a surface
18. The minimum velocity required for an object (starting from the surface of a planet) to escape the potential well of said planet
19. A support force exerted on an object in contact with a stable surface, acting perpendicular to the surface the object it is resting on
21. A value of 6.67 x 10^-11 Nm^2/kg^2 that is denoted by “G” (3 words)

1. Force applied over time, also the change in momentum over time
2. Mass in motion, measured in kg*m/s
3. The point where a falling object has no acceleration (two words)
5. The “stiffness” of a spring, denoted by “k” (2 words)
6. A displacement-time graph displaying a straight, horizontal line means that for the given time interval, the velocity of the object is:
8. Type of acceleration where an object is moving in uniform circular motion
10. The time it takes for one complete cycle
11. Type of force required to return a spring to its original position
16. Law that states that force is equal to the spring constant multiplied by displacement (____'s Law)
17. During this type of collision, kinetic energy is lost
20. The force on an object that causes a displacement, measured in joules