Download Name: Core: ______ Answers - Review Packet #1 1. The

Name: ____________________________________
Core: __________
Answers - Review Packet #1
1. The measurement of length between two points, which does NOT include a direction, is called what?
Answer: Distance
2. Measurements that include a magnitude (meaning, a number) and a direction are called what?
Answer: Vectors
3. What is the steepness or angle of a line of a graph called?
Answer: Slope
4. Your speed at a specific moment in time is called _____ speed.
Answer: Instantaneous
5. What is the average speed of a car that travels 300 km in 6 hours (in km/h)? (Read this question twice.)I will give you 30 seconds
to answer this question.
Answer = 50 km/hr
6. If a certain car travels at a speed of 70 miles per hour, how many miles did it travel in 2 hours? (Read this question twice.)
Answer = 140 miles
7. If it takes 5 hours to travel 500 miles, how many miles did a car travel in 3.5 hours? (Read this question twice and give them 30
seconds.)
Answer = 350 miles
8. How are speed and velocity different? Write a short sentence.
Answer = Velocity includes a direction.
9. The rate at which velocity changes is called ___.
Answer = Acceleration
10. A horizontal straight line of a speed-time graph indicates what? (You may have to draw what a horizontal line looks like on the
board.)
Answer = constant speed
11. A horizontal straight line of a distance-time graph indicates what?
Answer = the object is not moving (no distance traveled over time)
12. A line that curves upward on a speed-time graph indicates what?
Answer = Acceleration (because more distance is covered in a shorter amount of time)
13. Draw a distance time graph showing an object that moves away from its origin, stops, and then returns back to its origin.
Answer = The graph should show an upward sloping straight line, then a horizontal line, then a downward sloping line that
hits the x-axis.
14. A push or pull that causes an object to move, stop, or change direction is called a ___.
Answer: force
15. A book pushed across a table is an example of what kind of forces acting of the book?
Answer: unbalanced forces
16. When you stand still and don’t float off into space, the force of gravity and the reactionary force acting on you are said to be
____.
Answer: balanced (because the forces are canceling each other out).
17. What are the units used to describe force?
Answer: Newtons
18. What is the net force (magnitude and direction) acting of an object when it is pushed to the left with 10 N and to the right with 7
N of force?
Answer: 3 N to the left
19. What is the velocity of objects that travel towards the center of the earth in a free fall?
Answer: 9.8 m/s2
20. What is the force that one surface exerts an another when the two rub against each other?
Answer: Friction
21. Which scientist described the law of gravity first?
Answer: Sir Isaac Newton
22. Which of Newton’s Laws of Motion states that for every action there is an equal and opposite reaction?
Answer: Newton’s 3rd Law of Motion
23. Which of Newton’s Laws basically says that an object will keep doing what it was doing, whether it was in motion or stationary?
Answer: Newton’s 1st Law of Motion
24. What is the force of an object that has a mass of 10 kg and an acceleration of 10 m/s2?
Answer: 100 N (because force = mass x acceleration)
25. The penny passengers mini lab was an example of which law? This was the one where you placed a penny on a toy car.
Answer: Newton’s 1st Law of Motion, or Law of Inertia
26. If a car travels twice around a round racetrack that is 100 km long, what is its displacement?
Answer = 0 km, because it ended where it started
Previous Units Review Questions:
27. What gas makes up most of the earth’s atmosphere?
Answer: Nitrogen
28. What level of the atmosphere is where all of the weather occurs?
Answer: Troposphere
29. What layer of the atmosphere contains the ozone layer?
Answer: Stratosphere
30. What is the name of the last layer of the atmosphere?
Answer: Exosphere
31. The process in which water vapor turns into clouds is called ___?
Answer: Condensation
32. The process in which plants release water into the atmosphere is called __?
Answer: Transpiration
33. What percentage of the atmosphere is made up of oxygen?
Answer: 21%
34. What gas makes up about 0.04% of the atmosphere?
Answer: Carbon dioxide
35. What is the name of the United States federal agency and writes environmental regulations?
Answer: EPA or Environmental Protection Agency
36. What type of cloud brings fair weather?
Answer: cumulus
37. The weight of the atmosphere pressing down of the earth is called ___.
Answer: air pressure, or atmospheric pressure
38. Where is there less air pressure, in the mountains or at the coast?
Answer: mountains
39. Most of the air molecules can be found in which layer of the atmosphere?
Answer: troposphere
40. The place where two air masses meet is called a ___.
Answer: front
41. Draw the weather symbol for a warm front.
Answer: there should be a line with semi-circles (not triangles).
42. What instrument is used to measure air pressure?
Answer: barometer
43. What is the science of studying the weather called?
Answer: meteorology
44. Which cloud is associated with thunderstorms?
Answer: cumulonimbus
45. The process in which water changes from a liquid to a gas as a result of heating is called ____.
Answer: evaporation
46. Spiraling high winds and funnel-shaped clouds are a characteristic of what weather event?
Answer: tornadoes
47. Huge, rotating storms that start over the ocean and affect large areas are called ___?
Answer: hurricanes
48. What type of clouds can be found at the highest altitudes?
Answer: Cirrus
49. What type of front is caused when a cold air mass pushes underneath a warm air mass, and it rains suddenly?
Answer: cold front
50. On a colored weather map, what color are cold fronts?
Answer: blue
51. Which protist moves with a single flagellum and has an eyespot?
Answer: Euglena
52. What is the name of the structure that amoebas use to move?
Answer: Pseudopods
53. What is the name of the structures that paramecium use to move?
Answer: cilia
54. What is the name for the gel-like material found inside a cell?
Answer: cytoplasm
55. What is the name of the organelle that releases energy into the cell?
Answer: mitochondria
56. What is the name of the organelles that contain chlorophyll to make food for a plant cell?
Answer: chloroplasts
57. What is the name of the organelle that stores water?
Answer: vacuole
58. Which body system is involved in the production and release of hormones?
Answer: endocrine
59. What is the name of the blood vessels that allow gas exchange?
Answer: capillaries
60. What is the word for maintaining a stable internal environment?
Answer: homeostasis
61. What system is primarily responsible for protecting an organism from microscopic invaders?
Answer: immune
67. What organ of the body produces bile?
Answer: gall bladder
68. What organ of the body is the largest?
Answer: skin
70. Skin is part of which body system, primarily?
Answer: integumentary
71. Give an example of a homozygous recessive genotype.
Answer: two lowercase letters
72. Give an example of a heterozygous genotype.
Answer: One uppercase letter, then one lowercase letter
73. A segment of DNA is called a ____.
Answer: gene
74. What process creates gametes?
Answer: meiosis
75. An observable trait that masks the presences of another trait is said to be dominant or recessive?
Answer: dominant