Notes Search Semester 1

Directions: Make sure to answer all questions with complete sentences. Show ALL your STEPS when you need to calculate something. There are a few multiple-choice problems they are not multistep problems. If you are reading the directions mark an x on the top left side of this page. Do your best!

1.What is Scientific Theory?

2.What is Scientific Law?

3.What is the difference between Scientific Theory and Scientific Law?

4.Using the International System of Units mass is measure in? (Choose one of the following letters)

a)kilograms (Kg)

b)pounds (lbs)

c)liters (L)

d)grams (g)

5. Using the International System of Units length is measure in? (Choose one of the following letters)

a)miles per hour (mph)

b)Centimeters (cm)

c)Meters (m)

d)Inches (in)

6. Using the International System of Units time is measure in? (Choose one of the following letters)

a)Hours (hr)

b)Seconds (s)

c)Minutes (min)

d)Moles (mol)

7.Convert the following problem and show your work.

8.Convert the following problem and show your work.

9.Convert the following problem and show your work.

10.Convert the following problem and show your work.

11.What is motion?

12.What is a reference point?

13.What is the difference between distance and displacement? (Hint:There is a key word that needs to be used to answer this question)

14.

15.What is the difference between scalar and a vector?

16. What are the three types of speed and how are they different from each other?

17. What is the difference between speed and velocity? Please provide both of the equations.

18. If Ms. A is traveling a distance of 100m to work and it takes her 10 min to get to work, what is her speed? (Hint: Show all your math steps)

19. If a zombie is running after Mr. Williams at a speed of 50 m/min and Mr. Williams is running at 80 m/min, does the zombie catch up to him and eat him? Yes or No and why? (Hint: Explain the physics behind your answer)

20.Ms. Alvarez is swimming north to reach her mermaid pod this is 600m away from Catalina Island. It takes her 10 min to get to her pod. What is her velocity? (Hint: Make sure to include units and steps)

21.What is acceleration? Please provide the formula as well.

22. What units are used to measure acceleration in? (Choose one of the following answers)

a)m/s

b)m/min

c)cm/s2

d)m/s2

23.What is the difference between positive and negative acceleration?

24.What is a race car’s acceleration if its velocity changes from 0 m/s to 40 m/s in 4 sec? (Hint: Provide all steps)

25.A down hill Skier’s velocity increases from 9 m/s to 18 m/s in 3 seconds. What is her acceleration? (Hint: Provide all steps)

26.A soccer ball was kicked, after 10 seconds, its velocity is 50 m/s. What is its acceleration? (Hint: Provide all steps)

28. What is Newton’s First Law? Provide an example.

29. If the velocity is not changing is there acceleration? Why?

30. Does weight and mass mean the same thing? Please explain your answer.

31.What causes an object to move when it is at rest?

32. If an object has a mass and there is acceleration what can we calculate? Explain your answer and provide the formula.

33.An Elephant has a mass of 5 kg and an acceleration of 2 m/s/s. What is the force on the object? (Hint: Please provide all steps)

34.An object has a mass of 15.89 kg and an acceleration of 17.18 m/s/s. What is the force on the object? (Hint: please provide all steps)

35.Ms. Alvarez has an object that’s force is 50N and it has an acceleration of 10m/s2, what is the mass of the object? (Hint: Please provide all steps)

36. What is Newton’s Third law? Please provide an example in your explanation.

37. What is momentum? Please provide the formula.

38.A particle has a mass of 10 kg and a velocity of 5 m/s. What is the momentum of the particle? (Hint: Please provide all steps)

39. A particle has a momentum of 10 kg/m/s and a velocity of 5 m/s. What is the Mass of the particle? (Hint: Please provide all steps)

40. What is the difference between a substance and a mixture?

41. What is matter?

42.What is the difference between a homogeneous mixture and a heterogeneous mixture? Provide examples for both.

43. How are temperature and kinetic energy related?

44.What is the law of conservation of mass? Give an example of how mass is conserved.

45.What is kinetic energy? Provide an example.

46.What are the three states of matter? Provide an example for each. (Hint: What is water?)

47.According to Thermal Expansion what happens to a substance when temperature is applied? Will it expand or contact? Please explain.

48.What is the exception for the Thermal Expansion Theory?

49. Why is the grass wet in the morning when it did not rain the night before?

50. Matter can undergo changes. What are the four changes to the states of matter that’s we learned about? Provide an example for all four of the changes to the states of matter.

51. Where can elements be found?

52.What is an atom and what are the parts that make an atom?

53. What are the charges for each part of the atom? (Hint: There are three parts that compose an atom, state their charges. Each one is different)

54.What is the current model that scientist think about how electrons travel through energy levels?

That is all for first semester. We still need to review second semester. I hope you all had fun! Here is a meme.

Cats are not liquids obviously! But this is funny!