Unit 5 Lesson 1 and 2 Quiz

Which type of energy is shown in the picture?

• electrical
• heat
• kinetic
• light

Sara observes different types of energy on the playground. She sees a falling leaf and a bouncing ball. She also sees a child swinging and a child at the top of a slide. Which activity has only potential energy?

• falling leaf
• bouncing ball
• child swinging
• child at the top of a slide

What is a definition of the word energy?

• the force of speech
• having strength or power
• natural resources
• the ability to cause motion or create change

Robbie presses down on a spring. Which tells when he releases the spring?

• Electrical energy becomes sound energy.
• Potential energy becomes electrical energy.
• Potential energy becomes kinetic energy.
• Potential energy becomes light energy.

Shania loves to dance. She turns on her radio to find some music. Which statement explains how the radio uses energy?

• Light energy changes into sound energy.
• Sound energy changes into electrical energy.
• Electrical energy changes into sound energy.
• Sound energy changes into mechanical energy.

After polishing a table, Jessica was able to see herself in it. Which sentence BEST explains this?

• The table reflected light
• The table refracted light.
• The table produced light.
• The table absorbed light.

Rosita shined a flashlight down a hallway. The light could be seen along the hallway but not around the corner. Which sentence BEST explains this?

• Light can be reflected.
• Light is a form of energy.
• Light travels in a straight line.
• Light moves faster than sound.

There is a row of trees along the edge of a lake. During the day, Jorge can see images of the trees on the surface of the lake. Which term BEST describes what Jorge observes?

• absorption
• reflection
• refraction
• transmission

Yoko put a flashlight on a table so the light shined on the wall. She put a piece of cardboard in front of the flashlight and could no longer see the light on the wall. What most likely happened to the light when it reached the cardboard?

• The cardboard destroyed it.
• The cardboard absorbed it.
• It was refracted outward in all directions.
• It was reflected onto the wall.

A lighthouse produces a bright beam of light as shown below. The light travels in a straight line. Which will absorb the beam of light?

• a mirror
• a waterfall
• a glass window
• the side of a cliff