energy/circuits

Jayla sets up an investigation with a ruler and three marbles. She pushes the single marble toward the two marbles. Which of these questions can Jayla investigation answer? Select the letters of the THREE correct answers.

• How do different forces affect motion?

• Do collisions transfer energy?

• How fast can a marble move?

• How far does each marble move?

• Will all marbles move the same distance?

An iron rod is placed into a flame, and energy is transferred down the rod. What type of energy is being transferred?

• light

• thermal

• sound

• electrical

What will most likely happen to the iron rod due to the transfer of energy?

• The iron rod will change color.

• The iron rod will melt.

Use this model of ocean waves hitting the shore to investigate transfer of energy. Which statement represents how energy in the waves changes as they reach the shore?

• Energy in waves is transferred to rocks and sand.

• Energy in waves is transferred to waves farther from shore.

• Energy in waves increases as the waves approach the shore.

• Energy in waves is lost to the atmosphere before reaching the shore.

A class poured 90° F water into three different cups and let them sit for 30 minutes. The students recorded the beginning and ending temperatures in the chart. Based on the information, which cup is the BEST insulator of thermal energy?

• plastic cup

• styrofoam cup

• glass cup

• all of the cups

Based on the information, which cup is the LEAST effective insulator of thermal energy?

• plastic cup

• styrofoam cup

• glass cup

• all of the cups

Calvin set up the lightbulb experiment to the left. Based on the data that Calvin collected, which of the following statements are true? Select TWO correct answers.

• Cut grass conducts electricity.

• Sand conducts electricity.

• Aluminum foil conducts electricity.

• Wood chips conduct electricity.

• Saltwater conducts electricity.

Write the letter of ONE word on each line to correctly identify the transfer of energy by waves. Some words will not be used. In deeper parts of the ocean, water has more room for wave energy to move. What happens to the wave energy as the water becomes more shallow? The water is forced ___ into the air, ___ the height of the wave. When the wave reaches the shore, some of the energy is transferred to the air as ___ energy.

This question has two parts. First, answer Part A. Then answer Part B. Part A: Which of the following elements should be used to complete a circuit?

• carbon (C)

• copper (Cu)

• hydrogen (H)

• phosphorous (P)

Part B: Which statement BEST supports your answer to Part A?

• Hydrogen (H) is a gaseous element. This physical property allows electricity to flow through to complete the circuit.

• Phosphorous (P) is a dull element. This physical property allows electricity to flow through to complete the circuit.

• Carbon (C) is a brittle element. This physical property allows electricity to flow through to complete the circuit.

• Copper (Cu) is a conductive element. This physical property allows electricity to flow through to complete the circuit.