Untitled Presentation

Fill in the Blanks

You attach a cart with a mass of 700 g to a spring and compress the cart-spring system so that the cart is located 15 cm behind the spring’s equilibrium position. The spring constant for the spring is 120 N/m. When the spring is released, what is the cart’s velocity as it passes the equilibrium position?

Multiple Choice

What happens to the movement of the string/stone when it is released from a 45° angle?

• It swings back and forth

• It falls straight down

• It stays in place

• It spins around

Fill in the Blanks

An object completes 2500 cycles in 25 s.

 What is the period of its rotation?

 What is the frequency of its rotation?

T = ____ s; f = ____ Hz

Open Ended

Calculate the frequency and period if a pendulum completes 30 cycles in 15 seconds. What is the frequency?

Multiple Choice

Calculate the maximum acceleration (a_max) of the body when it is displaced 10 cm from the equilibrium position using the formula a_max = -4π²A/T².

• -200.3 cm/s²

• -100 cm/s²

• 0 cm/s²

• 200.3 cm/s²

Multiple Choice

What is the formula for calculating angular velocity?

• ω = 2πf

• ω = f/2π

• ω = 2fπ

• ω = πf^2

Multiple Choice

If length is increased by a factor of 2, what will happen to the T?

• It will decrease by 2

• It will remain the same

• It will increase by 2

• It will double

Open Ended

Explain the concept of a physical pendulum and how it differs from a simple pendulum.

Open Ended

Explain the concept of underdamped motion in your own words.

Open Ended

Explain how a car's spring and shock absorber function to provide dampening. How does this relate to buildings during an earthquake?

Multiple Choice

What does the graph in Figure 2 illustrate about critically damped and overdamped motion?

• The relationship between displacement and time

• The effect of damping on oscillation

• The types of springs used in cars

• The importance of shock absorbers

Multiple Choice

Which one of the following statements is not true for a body vibrating in simple harmonic motion when damping is present?

• The damping force is always in the opposite direction to the velocity.

• The damping force is always in the opposite direction to the acceleration.

• The presence of damping gradually reduces the maximum potential energy of the system.

• The presence of damping gradually reduces the maximum kinetic energy of the system.

Open Ended

Water waves in a small tank are .075 m long. They pass a given point at a rate of 21 waves every three seconds. What is the speed of the water waves? What is the period of these water waves? (4 pts)

Open Ended

What is the amplitude of the wave function shown in the diagram?

Open Ended

At time t=0, what is the position of the pulse centered on?

Multiple Choice

What is the mathematical relationship that describes the distance a pulse travels in a given time?

• Distance = Speed × Time

• Distance = Time / Speed

• Distance = Speed + Time

• Distance = Speed - Time

Multiple Choice

A guitar string vibrates with a frequency of 320 hz. If the wavelength of the vibration is 0.23 meters what is the speed of the wave?

• 320.23 m/s

• 1391.3 hz

• 73.6 m/hz

• 73.6 m/s

Multiple Choice

A tennis ball is being swung on the end of a 1.5 m (r) string and takes 1.25 seconds (T) for a complete revolution. What is the period (T) of the tennis ball?

• 1.25 s

• 0.833 s

• 1.2 s

• 0.021 s

Multiple Choice

Two waves E and G are shown. The waves have the same speed.

Which statement is correct?

• Wave E has a greater amplitude than wave G.

• Wave E has a greater intensity than wave G.

• Wave E has a smaller frequency than wave G.

• Wave E has a smaller wavelength than wave G.

Multiple Choice

What happens to the frequency of a pendulum as its length increases?

• It increases

• It decreases

• It remains the same

• It fluctuates

Multiple Choice

The spring oscillates to the other end. The amplitude is 3.5m, k=1.2, and ω=4.3. Solve the frequency, wavelength, wave speed, period, wave number, and direction.

• Frequency: 1.2 Hz, Wavelength: 2.5 m

• Frequency: 2.5 Hz, Wavelength: 1.2 m

• Frequency: 4.3 Hz, Wavelength: 3.5 m

• Frequency: 3.5 Hz, Wavelength: 4.3 m