€¦ · web viewa cart is constrained to move along a straight line. a varying net force along...

Pretest! No Worries!

Pretest AP Physics 1Name_______________________

Welcome to AP Physics 1, please answer the following questions using your current knowledge. For each question below, please circle the best answer given your prior knowledge. Thank-you for helping me out no worries!

1. Where would you like to sit?a. Frontb. Middle c. Backd. Don’t care whatsoever

2. The reason I picked the above answer is:a. I have terrible eyesightb. I have difficulty focusingc. I am self conscious of people staring at the back of my headd. I am talle. I am shortf. I really don’t careg. Other______________________________________

3. I would really like to sit next to ___________________ , __________________( we promise to be on task!)

4. Please do not seat me next to _____________________ (They are a very nice person, I just don’t think it would be in my best educational interest.)

5. My current math class for the 2016-2017 school year isa. Geometryb. Algebra II or Honors Algebra IIc. Pre-Calculus or Honors Pre-Calculusd. Calculus AB or Calculus BCe. AP Statisticsf. Ms. Marentette I’m so advanced that high school doesn’t apply to me

6. My favorite all time class of high school was of the following topic:a. Math b. Historyc. Scienced. Englishe. Elective


In an experiment to determine the spring constant of an elastic cord of length 0.60 m, a student hangs the cord from a rod as represented above and then attaches a variety of weights to the cord. For each weight the student allows the weight to hang in equilibrium and then measures the entire length of the cord. The data are recorded in the table below.

Use the data to plot a graph of weight (y axis) verses length (x axis) on the axes below.

How long is the rope if a 30 N weight is hung on it?


Name________________________1. The graph shows position as a function of time for two trains running on parallel tracks. Which

is true:

a. At time tB , both trains have the same velocity.b. Both trains speed up all the timec. Both trains have the same velocity at some time before tB

d. Somewhere on the graph, both trains have the same nonzero acceleration

2. The graph to the right shows Marilyn’s distance from her campsite during a 3 hour hike. She stopped for 30 mintes during her hike to have lunch. Based on the graph, which of the following is closest to the time she finished lunch and continued her hike?

a. 12:40 pmb. 1:10 pmc. 1:40 pmd. 2:00 pm

3. The graph to the right shows the velocity vs time for an object moving in a straight line. At what time after t=0 does the object again pass through its initial position

a. Between 0 and 1 secondsb. 1 secondc. Between 1 and 2 secondsd. 2 secondse. Between 2 and 3 seconds

positionA

B

tB

time


At time t = 0, car X traveling with speed v0 passes car Y. which is just starting to move. Both cars then travel on two parallel lanes of the same straight road. The graphs of speed v versus time t for both cars are shown above.

4. Which of the following is true at time t = 20 seconds?

a. Car Y is behind car X. b. Car Y is passing car X. c. Car Y is in front of car X. d. Both cars have the same acceleration. e. Car X is accelerating faster than car Y.

5. From time t = 0 to time t = 40 seconds, the areas under both curves are equal. Therefore, which of the following is true at time t = 40 seconds?

a. Car Y is behind car X. b. Car Y is passing car X. c. Car Y is in front of car X. d. Both cars have the same acceleration. e. Car X is accelerating faster than car Y.

6. For the graph to the right, what quantity is the slope of this graph?

a. Velocity b. Workc. displacementd. Acceleratione. Massf. impulse


Name________________________1. For the graph to the right what quantity is the slope of this

graph?a. Velocity b. Workc. displacementd. Acceleratione. Massf. impulse

2. For the graph to the right what quantity is the area of this graph?


3. For the graph to the right, what quantity is the area of this graph?a. Velocity b. Workc. displacementd. Acceleratione. Massf. Impulse

4. For the graph to the right what quantity is the area of this graph?



Questions 5-6

A cart is constrained to move along a straight line. A varying net force along the direction of motion is exerted on the cart. The cart’s velocity v as a function of time t is shown in the graph above. The five labeled points divide the graph into four sections.

5. Which of the following correctly ranks the magnitude of the average acceleration of the car during the four sections of the graph?

a. aCD>aAB>aBC>aDE

b. aBC>aAB>aCD>aDE

c. aAB>aBC>aDE>aCD

d. aCD>aAB>aDE>aBC

6. For which segment does the cart move the greatest distance?a. ABb. BCc. CDd. DE

7. Given the position vs time graph choose the correct motion of the object. a. Constant velocityb. Speeding up rightc. Speeding up leftd. Slowing down righte. Slowing down left


Name________________________

1. An object’s velocity v as a function of time t is given in the graph. Which of the following statements is true about the motion of the object?

a. The object is not moving from t=4 to t=10 sb. The object’s initial and final positions are the samec. The object is slowing down from t=14 to t=16 sd. The average acceleration of the object from t=0 to t=4 s is different from the

acceleration from t=34s to t=36 s.

2. A lion is running at constant speed toward a gazelle that is standing still, as shown in the figure below. After several seconds, the gazelle notices the lion and accelerates directly toward him, hoping to pass the lion and force him to reverse direction. As the gazelle accelerates toward and past the lion, the lion changes direction and accelerates in pursuit of the gazelle. The lion and the gazelle eventually each reach constant but different speeds. Which of the following sets of graphs shows a reasonable representation of the velocities of the lion and the gazelle as function of time?


3. The motion of an object moving along a straight line is described by the graph of velocity v versus time t. Which of the following is true about the acceleration of the object during the time interval from 0 to 8 s?

a. It increases during the entire time b. It decreases during the entire timec. It remains the samed. It first increases and then decreasese. It first decreases and then increases

4. The figure to the right shows the net force exerted on an object as a function of the position of the object. The object starts from rest at position x=0m and acquires a speed of 3 m/s after traveling a distance of 0.09 m. What is the mass of the object?

a. 0.015 kgb. 0.03 kgc. 0.045 kgd. 0.06 kg

5. What is the final velocity of a 2 kg object at 3 seconds if the initial velocity is -2 m/s at time t=0 seconds?

a. 2 m/sb. 4 m/s c. 6 m/sd. 8 m/s

Questions 6 and 7

6. If a 4 kg object is at rest at time zero, what is the speed of the object at 12 seconds?

a. 3 m/sb. 6 m/sc. 18 m/s

7. Given the force vs position graph what is the work from time 0 to time 12 seconds?a. 24 Jb. 18 Jc. -6 J

€¦ · web viewa cart is constrained to move along a straight line. a varying net force along...

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