Which type of energy transfer can take place without matter present? (1 point)
O Radiation
O Convection
O Insulation
© Conduction
Radiation
An ice cube is placed on a metal block that is at a room temperature of 300C. Which statement describes the transfer of heat between the ice cube and metal block? (1 point)
• Heat is transferred from the ice cube to the air, and the ice melts.
• Heat is transferred from the air to the ice cube, and the ice melts.
• Heat is transferred from the air and metal to the ice cube, and the ice melts.
• Heat is transferred from the ice cube to the metal block, and the ice melts.
Heat is transferred from the metal block to the ice cube, and the ice melts.
An ice cube is placed on a metal block that is at a room temperature of 300C. Which statement describes the transfer of heat between the ice cube and metal block? (1 point)
• Heat is transferred from the ice cube to the air, and the ice melts.
• Heat is transferred from the air to the ice cube, and the ice melts.
• Heat is transferred from the air and metal to the ice cube, and the ice melts.
• Heat is transferred from the ice cube to the metal block, and the ice melts.
The correct statement is:
• Heat is transferred from the metal block to the ice cube, and the ice melts.
Heated gases will rise to the top of its container. Why does this occur? (1 point)
• Heated gases will decrease in kinetic energy and decrease in density.
• Heated gases will increase in kinetic energy and decrease in density.
• Heated gases will decrease in kinetic energy and increase in density.
• Heated gases will increase in kinetic energy and increase in density.
The correct statement is:
• Heated gases will increase in kinetic energy and decrease in density.
When an electric fan is plugged into a wall outlet, the fan blades spin as a result. What energy transformation occurred? (1 point)
• Electrical energy is created, but mechanical energy is destroyed.
O Electrical to mechanical
• Mechanical energy is created, but electrical energy is destroyed.
• Mechanical to electrical
The energy transformation that occurred is: Electrical to mechanical.
When a match is struck, what forms of energy does the burning match give off? (1 point)
O Nuclear energy and light energy
O Thermal energy and solar energy
• Light energy and thermal energy
• Solar energy and nuclear energy