Science ENERGY Chapter 20

In your body ______ speed up the cell process. Conductors Enzymes Insulators Chemical bonds

In your body ______ speed up the cell process. Conductors Enzymes Insulators Chemical bonds

The motion of atoms in all directions in solids, liquids, and gases is called ______. Radiation Convection Random motion magnetism

The motion of atoms in all directions in solids, liquids, and gases is called ______. Radiation Convection Random motion magnetism

The spring inside a moving wind-up toy has ________. Potential energy only Kinetic energy only Both potential and kinetic energy Neither potential nor kinetic energy

The spring inside a moving wind-up toy has ________. Potential energy only Kinetic energy only Both potential and kinetic energy Neither potential nor kinetic energy

Radiation involves the transfer of energy by _______. Particle collisions Waves Air flow Temperature differences

Radiation involves the transfer of energy by _______. Particle collisions Waves Air flow Temperature differences

Cooking pans have handles made of materials that are ______ of heat. Conductors Insulators Transformations transmitters

Cooking pans have handles made of materials that are ______ of heat. Conductors Insulators Transformations transmitters

Heat is _______ by food as it cooks. Absorbed Transferred Charged energized

Heat is _______ by food as it cooks. Absorbed Transferred Charged energized

Which of the following statements describes the flow of heat? Energy move from a warmer object to a cooler object Energy moves from a cooler object to a warmer object Energy move only between two warm objects Energy never moves through cooler objects

Which of the following statements describes the flow of heat? Energy move from a warmer object to a cooler object Energy moves from a cooler object to a warmer object Energy move only between two warm objects Energy never moves through cooler objects

Which of the following is NOT a good conductor of heat? Air Aluminum Cooper None of the above

Which of the following is NOT a good conductor of heat? Air Aluminum Cooper None of the above

Which of the following is a heat transfer when particles move from one place to another Conduction Convection Thermal reaction temperature

Which of the following is a heat transfer when particles move from one place to another Conduction Convection Thermal reaction temperature

What causes an endothermic reaction in a cake? Heat Flour Baking soda Baking powder

What causes an endothermic reaction in a cake? Heat Flour Baking soda Baking powder

What is the freezing point on the Fahrenheit scale? -20 0  12  32 

What is the freezing point on the Fahrenheit scale? -20 0  12  32 

At 0  on the Celsius temperature scale, _________. Water boils Water freezes All particle motion stops All chemical bonds are broken

At 0  on the Celsius temperature scale, _________. Water boils Water freezes All particle motion stops All chemical bonds are broken

What type of energy is absorbed by food as it cooks? Chemical energy Light energy Thermal energy Electric energy

What type of energy is absorbed by food as it cooks? Chemical energy Light energy Thermal energy Electric energy

An example of heat transfer by convection is the _________. Melting of ice Formation of air currents Formation of chemical bonds Heating of the ground by sunlight

An example of heat transfer by convection is the _________. Melting of ice Formation of air currents Formation of chemical bonds Heating of the ground by sunlight

The total amount of energy in the universe ___________. Is always increasing Remains the same Is always decreasing Varies from moment to moment

The total amount of energy in the universe ___________. Is always increasing Remains the same Is always decreasing Varies from moment to moment

An example of exothermic reaction is __________. Photosynthesis The boiling of water The explosion of dynamite The formation of water from oxygen and hydrogen

An example of exothermic reaction is __________. Photosynthesis The boiling of water The explosion of dynamite The formation of water from oxygen and hydrogen

Which of the following scientists described the law of conservation of energy? Celsius Joule Kelvin Fahrenheit

Which of the following scientists described the law of conservation of energy? Celsius Joule Kelvin Fahrenheit

What increases as the speed of an object increases? Kinetic energy Mass Nuclear energy Potential energy

What increases as the speed of an object increases? Kinetic energy Mass Nuclear energy Potential energy

Which of the following kinds of chemical reactions absorb energy? Exothermic Endothermic Catalysts thermals

Which of the following kinds of chemical reactions absorb energy? Exothermic Endothermic Catalysts thermals

When would you have the most potential energy? Walking up the hill Sitting at the top of the hill Running up the hill Sitting at the bottom of the hill

When would you have the most potential energy? Walking up the hill Sitting at the top of the hill Running up the hill Sitting at the bottom of the hill

How is energy from the sun transferred to Earth? Conduction Convection Radiation Insulation

How is energy from the sun transferred to Earth? Conduction Convection Radiation Insulation

During an energy transfer, what happens to the total amount of energy? It increases It decreases It stays the same It depends on the energy form being transferred

During an energy transfer, what happens to the total amount of energy? It increases It decreases It stays the same It depends on the energy form being transferred

What happens if two objects at different temperatures are touching? Heat moves from the warmer object Heat moves from the cooler object Heat moves to the warmer object No heat transfer takes place

What happens if two objects at different temperatures are touching? Heat moves from the warmer object Heat moves from the cooler object Heat moves to the warmer object No heat transfer takes place

Which of the following correctly describes energy? Energy can be created Energy can be destroyed Energy cannot change form Energy can cause change

Which of the following correctly describes energy? Energy can be created Energy can be destroyed Energy cannot change form Energy can cause change