Download MidTermReview - Milan Area Schools

Name ______________________________________ Date _______ Block __________
Mid Term Exam Review
1. Vectors have ________________ and _______________.
2. The magnitude of Vector A is:
3. The magnitude of Vector B is:
4. Draw the vector that would be the resultant of
A + B. Label it C
5. Draw the vector that would result if you
Subtracted B – A. Label it D.
6. If vector L has an X component of 7 and a y
component of 4, and vector M has an x component
of 1 and a y component of 11. What is the magnitude
of the resultant vector when you add L + M?
B
A
7. Cosine of 45 degrees = ?
8. How many nanometers are in a meter?
9. Explain how to convert from mL to L.
10. How many minutes are in 10 days?
11. What things can you tell from a graph of displacement vs. time graph?
How?
12. What things can you tell from a graph of velocity vs. time graph?
How?
13. How do you find average velocity?
14. Average Acceleration = ____________ divided by ______________.
15. If a cars velocity goes from 17 m/s to 5 ms in 3 s, what was the car’s average
acceleration?
16. What does constant velocity mean?
17. What does constant Acceleration mean?
18. Describe projectile motion.
19. What is the best angle to launch a projectile at for maximum range?
20. If a car accelerates from rest at 2 m/s2 for 7 s, what is the car’s final velocity?
21. An ant walks 25 m, if it began traveling at 1 m/s and it took the ant 500 s to make the
journey what was the ant’s (constant) acceleration?
22. A car’s velocity goes from 25 m/s to 50 m/s in 10 s, how far has it traveled?
23. An arrow is launched at a 70 degree angle with an initial velocity of 140 m/s, what is
it’s initial horizontal velocity?
What is its initial vertical velocity?
How long will the arrow be in the air?
What is the maximum height reached by the arrow?
How far away will the arrow land?
24. What is Newton’s first law?
What is Newton’s 1st law in your own words?
25. What is Newton’s 2nd law?
What is Newton’s 2nd law in your own words?
26. What is Newton’s 3rd Law?
In your own words?
27. Define Force.
28. What is an action/reaction pair of forces?
29. Give an example of Newton’s 1st Law
30. Give an example of Newton’s 2nd Law
31. give an example of Newton’s 3rd Law
32. What is the weight of a 10 kg dog? A 75 kg table?
33. What is the normal force on the 10 kg dog? The 75 kg Table?
34. What is the mass of a 780 N horse? A 1960 N car?
35. What would happen to an object who’s weight was greater than the normal force that
the table it was sitting on could provide?
36. A 50 kg sled is pulled across snow (coefficient of kinetic friction 0.2) at a constant
velocity. What force is pulling the sled?
37. The sled from problem 36 is pulled by a rope at a 45 degree angle, what is the
tension in the rope?
38. How much force is required to just barely move a 100 kg palette across a wodden
floor (coefficient of friction 0.3)?
39. What is the coefficient of friction between a block and the floor is a 100 N force pulls
the 400 N block at a constant velocity?
40. If a block is pushed forward with a 10 N and backwards (negative direction) with a
force of 20 N. What is the net force on the block?
41. If the 20N force is now applied to the right (instead of backwards) what is the net
force on the block?
42. If a 100 kg mass accelerates at 20 m/s2 what force is being applied to it?
43. A 200 N force will cause a 400 N mass to accelerate at what rate?
44. A 600 N sign is supported by 2 wires which make an 80 degree angle with each other.
If the tension in the wires is equal, what tension are they under?
45. A 50 kg child slides down a ramp at constant velocity.
A. What is the force of gravity on the child?
B. What is the component of the gravitational force in the direction of the slide?
C. What is the normal force on the child?
D. What is the magnitude and direction of the frictional force?
46. If a 45 kg bucket is swung in a circle with a 3 m radius, where one revolution takes 10
s, what is the centripetal acceleration. What is the amount of centripetal force on the
bucket?
47. A 100 N force pushes a lawnmower 70 m, how much work is done?
48. How much power is generated when lifting a 20 kg mass 2 m, in 11 s?
49. If earth is 3 times as far away from the sun as mercury, compare the strength of the
gravitational force between the sun and mercury, and the sun an earth. How many earth
years does it take Mercury to orbit the sun?
50. What is the strength of the gravitational field 5 x 107 m center of a planet which has
2 x 1026 kg of mass?
How long would it take this satellite to complete 1 orbit?
How fast would this satellite travel in orbit?