Review Sheet for Physics Exam 1 2019

Motion Forces Momentum Velocity Acceleration Freebody diagram Inertia Orbit Newton’s 1st Law of

Motion Newton’s 2nd Law of

Motion Speed Vector Energy Transfer Kinetic Energy Potential Energy

Gravitational Potential Energy

Mechanical Advantage

Actual Mechanical Advantage

Ideal Mechanical Advantage

Work Power Efficiency Newton’s 3rd Law of

Motion Newton’s Universal

Gravitational Law Collisions Infrared waves and

satellites

Radio waves and satellites

Visible waves and satellites

Law of Conservation of Momentum

Microwaves waves and satellites

Kepler’s Laws Law of Orbits Law of Periods Law of Areas F=m*a p= m * v wheel and axel wedge lever pulley

Questions

1. Below are all examples of which of the simple machines: Lever, Pulley, Wheel and Axel, or Inclined Plane?

2.3. Below are all examples of which of the simple machines: Lever, Pulley, Wheel and Axel, or

Inclined Plane?

4. Below are all examples of which of the simple machines: Lever, Pulley, Wheel and Axel, or Inclined Plane?

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Unknown Author is

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5. Below are all examples of which of the simple machines: Lever, Pulley, Wheel and Axel, or Inclined Plane?

6. How do you calculate velocity?7. How do you calculate acceleration?8. How do you calculate force?9. How do you calculate momentum?10. What is the difference between speed and velocity?11. What is a vector?12. Which is a vector speed or velocity?13. A force of attraction between two objects is called, what?14. What is the change of velocity called?15. What is it called when the only force on a falling object is the force of gravity?16. What is net force?17. Which of Newton’s Laws does this picture show?

18. Which of Newton’s Laws does this picture show?

19. Which of Newton’s Laws does this picture show?

20. Which of Newton’s Laws does this picture show?

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21. Which of Kepler’s Laws does this picture show?

22. Which of Kepler’s Laws does this picture show?

23. Which of Kepler’s Laws does this picture show?

24. What is a natural satellite? Give an example.25. In order to stay in orbit a satellite must maintain a velocity between what two speeds? (don’t

forget your units). Explain why you chose these two speeds. 26. Explain how communication satellites and NOAA satellites use electromagnetic radiation.

27. This is the force that pulls objects towards each other. On our planet, objects are pulled towards the center of the earth, which causes them to fall downwards.

28. ______________is when forces are acting in the opposite direction of the motion of an object. 29. An object at rest tends to remain at rest and an object in motion tends to continue moving in a

straight-line at constant speed, unless an outside force acts upon it. 30. Force = Mass times acceleration.31. For every action, there is an equal and opposite reaction. 32. Energy cannot be created or destroyed.33. Does Earth accelerate? Explain your answer34. Earth exerts a gravitational force on the Sun and the Sun exerts a gravitational force on Earth.

Explain your answer.35. Which exerts the larger force the Earth on the Sun or the Sun on the Earth? Explain your choice.36. Imagine another solar system with a star of the same mass as the Sun. In this solar system there

is a planet with a mass twice that of Earth orbiting at a distance of 1 AU from the star. What is the orbital period of that planet? Explain your answer.

37. Calculate using Newton’s 2nd Law of Motion

Total Force (N) Mass (kg)

Acceleration (m/s2) Answer

200 10 ?

800 20 ?

? 50 10

? 50 15

550 ? 5

5000 ? 20

? 1500 15

? 250 25

38. What are forces?39. What is a free body diagram?40. What is momentum?41. What is the Law of Conservation of Momentum?42. What is an orbit?43. Compare and contrast motion and collisions on Earth versus in space. Why are they so different?

44. Is there gravity in space? Explain your answer?45. Why do astronauts appear to be floating?46. How can we minimize the damage that satellite A will cause as it crashes into satellite B?47. How can we put satellite A back into orbit?48. Explain, in detail, what the diagram below is and what it indicates

49.