Physics Review Name___________ Fill in the bubble with the most correct answer.
1.) A car travels 60 miles in 2 hours, the average speed is
A.) 2 mph B.) 60 mph C.) 30 mph D.) 120 mph
2.) A car travels from 0 to 30 in 3 seconds. What is the cars acceleration?
A.) 2 m/s2 B.) 4 m/s2 C.) 10 m/s2 D.) 6 m/s2
A ball is thrown directly upward with a velocity of 50 m/s. (Questions 3 - 7)
3.) How high does the ball travel?
A.) 50 m B.) 10 m C.) 20 m D.) 125 m
4.) How long is the ball in the air for?
A.) 2 s B.) 4 s C.) 10 s D.) 10 s
5.) With what velocity does the ball strike the ground?
A.) 10 m/s B.) 20 m/s C.) 40 m/s D.) 50 m/s
6.) What is the acceleration of the ball at the very top?
A.) 10 m/s2 B.) 0 m/s2 C.) 50 m/s2 D.) depends
7.) What is the velocity of the ball after 7 s?
A.) 70 m/s B.) 50 m/s C.) 20 m/s D.) 40 m/s
A ball is dropped from the top of a tall building and hits the ground 3 s later. (Questions 8 - 11)
8.) How tall is the building?
A.) 100 m B.) 45 m C.) 20 m D.) 80 m
9.) What is the acceleration of the ball?
A.) 0 m/s2 B.) 10 m/s2 C.) 20 m/s2 D.) 30 m/s2
10.) What is the acceleration of the ball after 3 s?
A.) 3 m/s2 B.) 10 m/s2 C.) 30 m/s2 D.) 40 m/s2
11.) How fast is the ball moving after 1.7 s?
A.) 1.2 m/s B.) 1.7 m/s C.) 2.1 m/s D.) 2.7 m/s
The following graph shows a position -verses- time graph for a car. Use this graph to answer the following questions.
C.
x(m) B.
A.
t(s)
20.) Which interval does the car have constant velocity?
21.) Which interval does the car have acceleration?
22.) Which interval is the car at rest?
24.) Which interval is the car moving with zero acceleration?
25.) A car moving with constant velocity does NOT and NEVER does have A.) speed
B.) acceleration C.) a force acting on it D.) wind resistance
26.) Two watermelons are dropped from the top of a building 1 s apart. As the watermelons fall, the difference between the velocity's of the two watermelons
A.) Stays the same. B.) Increases C.) Decreases D.) is zero
27.) In the watermelon question above, the difference between the accelerations of the two watermelon A.) Stays the same.
B.) Increases C.) decreases D.) is zero
31.) A baseball is thrown at some angle in the air. In the first second it moves 10 meters horizontally. Assuming it doesn't hit the ground and air resistance is small, how far does it move after the fourth second?
A.) 5 m B.) 20 m C.) 40 m D.) 45 m
32.) A baseball is launched straight up with a velocity of 40 m/s. How high does it go upward?
A.) 5 m B.) 20 m C.) 45 m D.) 80 m
33.) A ball is rolled horizontally off of a lab table traveling at 6 m/s and hits the ground 2 m from the base. If the ball were instead rolled of at 3 m/s, the ball would land
A.) 2 m B.) 1 m C.) 3 m D.) 6 m
36.) The mass of an object is 20 kg on the moon. If the same object is brought to earth, it would have a mass of
A.) six times the moon B.) 1/6 th the moon C.) 0 D.) 20 kg
37.) A 200 lb person on earth, has about what weight on the moon?
A.) 33 lb B.) 200 lb C.) 1200 lb D.) 0 lb
38.) A 1000 N person is suspended by a pair of ropes with 90 degrees between them (each 45 degrees from the horizontal.) The tension in each rope is
A.) 500 N B.) less than 500 N C.) more than 500 N
B
A
39.) The blocks above are in equilibrium and are suspended by ropes A and B as shown above. What is the force acting on string A?
A.) 500 N B.) 250 N C.) 1000 N D.) 1500 N
50 kg
Physics Name: ______________________________ Final Exam, Free Response
1.) A piece of chalk is fired from Mr. Wirths famous chalk gun. Once the "bullet" leaves the gun, what force causes the bullet to move forward horizontally? Explain.
A.) Explain the motion of the bullet in both the vertical and horizontal directions. Explain how the motion for each differs. Use appropriate physics terms in your explanation.
B.) Draw all of the vectors acting on the bullet below. Include velocity, acceleration, force, etc. if it applies. Explain each vector that is drawn and how it applies.
2.) Give two examples of Inertia which were not discussed in class. Draw a picture with labels for each. Also explain why Inertia can be dangerous for humans.
