SPH4U Crossword

5. The number of cycles per unit of time
7. The time it takes for one complete cycle
9. law that states that force is equal to the spring constant multiplied by displacement (___ law)
12. A support force exerted on an object in contact with a stable surface, acting perpendicular to the surface the object it is resting on (___ force)
15. Found by calculating the area under a velocity time graph
16. A displacement time graph displaying a straight, horizontal line means that for the given time interval, the velocity of the object is:
17. second law For every action there is an equal and opposite reaction (three words)
18. Force applied over time, also the change in momentum over time
19. of momentum Total momentum before a collision is equal to the the final momentum after the collision
20. gravitational constant It has a value of 6.67 x 10 11 Nm2/kg2 and is denoted by “G” spring constant The “stiffness” of a spring, denoted by “k”

1. Type of acceleration where an object is moving in uniform circular motion (___ acceleration)
2. An inward force acting on an object moving in a circular path (___ force)
3. A force that opposes the motion of an object as it moves across a surface
4. The force on an object that causes a displacement, measured in joules
6. Type of force required to return a spring to its original position (___ force)
8. During this type of collision, kinetic energy is lost
10. The minimum velocity required for an object (starting from the surface of a planet) to escape the potential well of said planet (___ velocity)
11. Mass in motion, measured in kg*m/s
13. direction and magnitude
14. velocity the point where a falling object has no acceleration (two words)