Across
- 2. The mass in Situation A is ____ kg.
- 5. Centripetal acceleration always points towards the _____________ of the circle.
- 6. Which of Newton’s Laws is also called the law of inertia?
- 9. The _________ force works against the direction of motion.
- 11. For projectile motion, an object is moving both vertically and _________________.
- 13. The centripetal acceleration of a hamster on a wheel running at 8 m/s if the wheel has a radius of 4m is ______________ m/s^2.
- 14. For circular motion, ________ points in the direction of motion
- 17. The _________ force pushes back on a object
- 19. For every action there is an equal and opposite reaction. This is Newton’s _______ law.
Down
- 1. Jose shoots a watermelon catapult and it travels 4000 m in 15 seconds. The initial velocity of the watermelon is 266. _____ m/s.
- 3. The ________ force pulls objects down.
- 4. Mrs. Delgado is doing donuts in her car on the highway. If she has a tangential velocity of 20 m/s and a radius of 100m. Her centripetal acceleration is ____ m/s^2.
- 7. If vectors are going in opposite directions, you should __________ them.
- 8. The relative velocity of a person walking at 2m/s to the front of a bus moving at 54 m/s is 5____ m/s.
- 10. The ________ force is when a force is applied to an object.
- 12. The mass in Situation B is 0.0_____ kg.
- 13. Force equals mass times acceleration. This is Newton’s ______ law.
- 15. Maxie throws a basketball with an initial velocity of 15 m/s. If he threw the ball 45m, how many seconds was it in the air?
- 16. The total force of a person, 13 kg, who accelerated from 7 m/s to 20m/s in 20s is ____ .45 N.
- 18. If vectors are going the same direction, you should _____ them.