ACP Practice (Graphs)

A car with a mass of 950 kg increases its velocity from 16 m/s to 22 m/s over a period of 1.2 s. What is the magnitude of the force exerted on the car during this time period?

• 1900 N

• 4750 N

• 5700 N

• 6840 N

Tags

NGSS.HS-PS2-1

If the boxes start from rest, which statement describes their motion and the reason for it?

• Both boxes move up, because the tension in the string pulls upwards on both boxes.

• Without the masses of the two boxes, nothing can be said about their motion.

• Neither box moves, because T_x and T_y are equal and opposite.

• Box X moves up because T_x > W_x, and Box Y moves down because T_y < W_y.

Tags

NGSS.HS-PS2-1

A toy car is pushed backwards, compressing a spring. Then the car is released and is accelerated forward by the spring. What type of energy transformation occurs in this example when the car is released?

• Momentum is transformed into kinetic energy.

• Kinetic energy is transformed into elastic potential energy.

• Kinetic energy is transformed into momentum.

• Elastic potential energy is transformed into kinetic energy.

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-3

The graph shows the velocity of an object, in meters per second, as a function of time, in seconds. Which position vs. time graph represents the same motion shown in the velocity vs. time graph?

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The graph shows the velocity in meters per second vs. time in seconds of a teacher walking through a hallway from class to class. During which complete time period is the teacher slowing down (decreasing speed)?

• 0-5 s

• 5-10 s

• 0-10 s

• 10-15 s

A hammer is striking a nail into a vertical wall. Which diagram shows the force interaction between the nail and the hammer?

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Tags

NGSS.HS-PS2-1

What are the magnitude and direction of the acceleration of the motorcycle based on the graph?

• 3.0 m/s², forward

• 6.0 m/s², backward

• 3.0 m/s², backward

• 18.0 m/s², forward

Tags

NGSS.HS-PS2-1

Two ships (A and B) are traveling next to each other in the same direction. Relative to the water, the speed of Ship A is 16 m/s. To someone standing on ship A, ship B appears to be passing ship A at 1 m/s. What is the speed of ship B relative to the water?

• 1 m/s

• 15 m/s

• 16 m/s

• 17 m/s

Which velocity vs time graph shows the same motion shown in the given position vs time graph?

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A "pitching machine" uses a spinning wheel to pitch baseballs to practicing players. The pitching machine shown has a wheel radius of 0.25m and is capable of launching 0.15kg baseballs at a speed of 40.2m/s. If the machine is set to launch baseballs at a height of 1.5m from the ground, what is the maximum horizontal distance the baseball will reach?

• 22.5 m

• 12.5 m

• 2.25 m

• 0.25 m

Tags

NGSS.HS-PS2-1