Physics Quiz: Energy and Wavelength

What is the order of the electromagnetic spectrum from lowest to highest energy?

• Visible light, infrared, radio waves, microwaves, X-rays, ultraviolet, and gamma rays

• Infrared, visible light, radio waves, X-rays, ultraviolet, microwaves, and gamma rays

• Radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays

• Microwaves, visible light, infrared, radio waves, X-rays, ultraviolet, and gamma rays

What type of waves have the longest wavelength in the electromagnetic spectrum?

• Radio waves

• Ultraviolet waves

• Gamma rays

• X-rays

Which color of light has the shortest wavelength in the visible spectrum?

• violet

• yellow

• green

• red

What is the relationship between wavelength and frequency of a wave?

• Unrelated

• Direct

• Inverse

• Constant

Calculate the energy of a photon with a wavelength of 500 nm.

• 3.97 x 10^-19 J

• 5.23 x 10^-19 J

• 7.89 x 10^-19 J

• 2.14 x 10^-19 J

Explain how energy is transformed from one form to another in a simple pendulum.

• Potential energy is transformed into kinetic energy and vice versa as the pendulum swings back and forth.

• Potential energy is transformed into thermal energy

• Kinetic energy is transformed into light energy

• Potential energy is transformed into sound energy

What is the formula to calculate the energy of a photon?

• E = mc^2

• E = 1/2 mv^2

• E = 9.8m

• E = hf

Describe the concept of potential energy and give an example.

• A bird flying in the sky has potential energy because of its wings.

• A book sitting on a table has potential energy because of its weight.

• A car moving at a constant speed has potential energy because of its motion.

• A rock sitting at the top of a hill has potential energy because of its position.

How is energy related to the motion of an object?

• Sound energy

• Thermal energy

• Potential energy

• Kinetic energy

Explain the process of energy transformation in a solar panel.

• The absorbed light energy is transformed into heat energy through the photovoltaic effect.

• The absorbed light energy is transformed into mechanical energy through the photovoltaic effect.

• The absorbed light energy is transformed into sound energy through the photovoltaic effect.

• The absorbed light energy is transformed into electrical energy through the photovoltaic effect.