Physics Challenge

What is the formula for calculating kinetic energy?

• KE = 0.5 * m * v^2

• KE = 0.5 * m * v

• KE = m * v^2

• KE = m + v

Explain the difference between potential and kinetic energy.

• Potential energy is the energy an object has due to its position or state, while kinetic energy is the energy an object has due to its motion.

• Potential energy is only found in living organisms, while kinetic energy is only found in non-living objects.

• Potential energy is the energy an object has due to its motion, while kinetic energy is the energy an object has due to its position or state.

• Potential energy and kinetic energy are the same thing.

How does sound travel through different mediums?

• By emitting light waves

• By creating a vacuum in the medium

• By causing the particles in the medium to vibrate and transmit the sound energy.

• By using magnetic fields to carry the sound

What is the relationship between frequency and pitch of a sound wave?

• Frequency and pitch are not related

• Frequency and pitch are directly related

• Pitch increases as frequency decreases

• Pitch has no effect on frequency

Define amplitude in the context of waves.

• Maximum displacement of the medium from its rest position

• Frequency of the wave

• Speed of the wave

• Wavelength of the wave

What is the formula for calculating work?

• W = F * d * sin(θ)

• W = F + d * cos(θ)

• W = F * d * cos(θ)

• W = F / d * cos(θ)

Explain the concept of resonance in relation to sound waves.

• Resonance is the complete absorption of sound waves by a material

• Resonance is the phenomenon of amplification that occurs when the frequency of a periodically applied force is in harmonic proportion to a natural frequency of the system.

• Resonance is the process of sound waves changing color

• Resonance is the phenomenon of sound waves traveling at the speed of light

What is the unit of measurement for energy?

• joule

• pound

• meter

• liter

Describe the process of energy transfer in a simple pendulum.

• The pendulum creates energy as it moves

• The pendulum loses energy as it swings

• The pendulum absorbs energy from the surroundings

• Potential energy is converted to kinetic energy and back as the pendulum swings.

How does the wavelength of a wave affect its energy?

• The energy of a wave increases as its wavelength decreases.

• The energy of a wave decreases as its wavelength decreases.

• The energy of a wave is not affected by its wavelength.

• The energy of a wave increases as its wavelength increases.