AP Physics 2 Summer PrepLevel 1This is a separate worksheet that you will find on the AP Physics 2 Summer Prep website.

Level 2: Centripetal Motion1. An object that is moving in uniform circular motion will definitely have a large acceleration if it

is _____. a. moving very fast b. moving along a sharp turn c. turning at a rapid rate Justify your answer:

2. Noah Formula guides a golf ball around the outside rim of the green at the Hole-In-One Putt-Putt Golf Course. When the ball leaves the rim, which path (1, 2, or 3) will the golf ball follow? ___________ (Note that this diagram depicts the bird's eye view.) Explain why.

3. A ride at Kennywood has a long arm that whips people around in a circle. The radius of the arm to the ride is 15 m. It has the people whipping around at a constant 22 m/s. What acceleration do the people feel?

4. If we want to travel to a different planet or star, we have a big problem. Without an acceleration due to gravity, people can get very sick. How can we create the sensation of gravity in space? One idea is to spin people, so that they experience an acceleration that is the same as the acceleration due to gravity. Imagine a space ship shaped like a wheel, with a radius of 250 m. If the people on the outside were experiencing an acceleration due to gravity of 9.8 m/s/s, how fast is the space ship rotating?

Level 3: Gravity1. The more massive that an object is, the ______ (more, less) that the object will be attracted to

Earth.

2. The more massive the Earth is, the ______ (more, less) that another object will be attracted to Earth.

3. The greater that Earth's radius is, the ______ (more, less) that another object will be attracted to Earth.

4. According to Newton's gravitation law, the force of gravitational attraction between a planet and an object located upon the planet's surface depends upon _____. Choose all that apply. a. the radius of the planet b. the mass of the planet c. the mass of the object d. the volume of the object e. … nonsense! None of these variables affect the force of gravity

5.

6. A physics student is standing on the surface of the moon (1.71 x 106 m from the center of the moon). They have a mass of 70 kg. The moon has a mass of 7.34 x 1022 kg. How much gravitational force does the student feel?

b) What is the student’s weight on the moon?

7. Calculate the weight of a 50.0 kg mass on the moon using Newton's Law of Universal Gravitation. (The mass of the moon is approximately 7.36 × 10 kg; the radius is 1.738 × 10 m.)

Level 4: Forces as VectorsAdding VectorsAaron Agin recently submitted his vector addition homework. As seen below, Aaron added two vectors and drew the resultant. However, Aaron Agin failed to label the resultant on the diagram. For each case, identify the resultant (A, B, or C). Finally, indicate what two vectors Aaron added to achieve this resultant (express as an equation such as X + Y = Z) and approximate the direction of the resultant.

In a classroom lab, a Physics student walks through the hallways making several small displacements to result in a single overall displacement. The listings below show the individual displacements for students A and B. Simplify the collection of displacements into a pair of N-S and E-W displacements. Then use Pythagorean theorem to determine the overall displacement.

Components

Level 6: Equilibrium Problems

A 405-N rightward force is use to drag a large box across the floor with a constant velocity of 0.678 m/s. The coefficient of friction between the box and the floor is 0.795. Determine the mass of the box.

1. Find Fg.

2. Find FT1,y and FT2,y

3. Find the FT1 and FT2

Now, let’s try it the reverse direction. I’ll give you the tension, and you find the weight.

1. Find the y components of the force of tension (FT1Y).

2. Find the weight by adding these together.

We can even solve these when the two ropes aren’t identical.1. Break the two tensions down into their x and y

components.

2. Are the two x components about the same? If you did it right, they should be.

3. Add the y components. They should equal the weight.

4. Use the weight to find the mass of the climber.

Level 7: Finding Net Force and Net Acceleration

The Problem: Find the resultant vector created by the two forces below:

Level 8: Push Pull Problems