5th Science Review First and Second Six Weeks

Look at the picture below.  Which part of the lamp system could be removed and the lamp still work?

• The lamp shade
• The electrical cord
• The light bulb
• The wall outlet

Which object is the best conductor of electricity?

• A ceramic mug
• A plastic fork
• A penny
• A wooden craft stick

What form of energy is being used when a person pushes heavy boxes across the floor? 

• Electrical energy
• Mechanical energy
• Heat energy
• Sound energy

Which statement is true about the picture?

• The metal pan causes the water to boil. 
• The metal pan is a poor conductor of heat.
• The wooden handle is a good heat insulator. 
• The wooden handle is a good heat conductor.

A girl turned the light off and went to bed.  She remembered she had accidentally left her glass of ice water on the counter.  When she got up the next morning, the ice had melted. What form of energy caused the ice to melt?

• Sound energy
• Light energy
• Thermal energy
• Mechanical energy

A student created an electrical circuit, shown.

Which of the following statements is true about the circuit?
 

• The electrical circuit is working.
• The electrical circuit is open.
• The electrical circuit is complete.
• The electrical circuit is closed.

Which form of energy is produced when a guitar string vibrates?

• Sound energy

• Electrical energy

• Chemical energy

• Light energy

Which form of energy is produced when a lamp is switched on?

• Sound energy

• Electrical energy

• Chemical energy

• Light and heat energy

A student wanted to see how his toy car would roll on different types of flooring. Jack decided to roll the car on a tile floor, a wood floor, and a carpeted floor. Jack's experiment was designed to test the effects of which of the following forces.

I. Gravity

II. Friction

III. Magnetism

• Gravity

• Gravity and magnetism

• Magnetism and friction

• Friction

Wind and hydropower are examples.

• Chemical Energy
• Gravitational Energy
• Mechanical Energy
• Sound Energy