Copy of Sci-5 Quarter 2 Spiral Review

How can it be explained that this boy's hair is sticking to the balloon in the picture?

• He needs to wash his hair.
• There is static electricity.
• There is too much dust in the air.
• A parallel circuit was on too long.

What natural hazard is also a powerful display of static electricity?

• Lightning
• Thunder
• Hurricane
• Tornado

The girl depends on electricity to vacuum the floor. The electricity she uses is changed into -

• Radiant energy
• Mechanical energy
• Light energy
• Superior energy

Electrical current passes through the wire curled around the nail. This model is of -

• a bar magnet
• a lightning rod
• a telephone
• an electromagnet

Energy is defined as the ability to _________ or do work.

• move
• cause change

When light hits an object, the rays can pass through it, bounce off it, or be absorbed by it. Light rays that bounce back are ________________,

• a. radiant
• b. reflected
• c. refracted
• d. radar

Which of the following is an example of a transparent item?

• A block of wood
• A piece of wax paper
• A car windshield
• A thin napkin

A student conducting an investigation with lasers had this question. QUESTION: What happens when you shine different colored lasers through a piece of blue paper? Based on this question, which of the following could be the student’s hypothesis?

• If a big laser shines on blue paper, then it will burn the paper.
• If a green laser shines on green paper, then green light will leave the paper from the other side.
• If a red light shines on a prism, then different colors of light will leave the prism in all directions.
• If a yellow laser shines on blue paper, then green light will leave the paper from the other side.

Which of the following best explains why the Washington Monument can be seen in the water below it?

• A light travels in a compression wave.
• Light is refracted as it enters water.
• Light is reflected off of smooth surfaces.
• Light can pass through water easily.

How is the use of sound waves helpful in this picture?

• It makes the water warmer.
• It helps the whale locate food.
• It signals fish to move out of the whale's way.
• It makes it easier to obtain oxygen.