Chapter 5-Physical Science

Why does a bowl filled with soup start to feel warm?

• The soup traded heat energy with the cold bowl
• The bowl lost heat energy to the hot soup
• The heat energy from the hot soup flowed to the cold bowl.
• The heat energy in the bowl and soup was the same.

What kind of energy does a skier have as they move down a hill?

• Mechanical energy
• Stored Energy
• Heat Energy 
• Chemical Change 

Define energy

• A force that can make movement 
• A source of fuel for cars 
• The power to do a lot of work 
• The ability to cause motion or create a change

It is cold outside and you rub your hands together to stay warm. Why do your hands become warm? 

• Hands are a good conductor of heat
• Your hands absorbs heat from the air 
• Heat is produced as your hands rub against each other

Why do firefighters wear leather and plastic? 

• They reflect light
• They keep workers cold 
• They absorb thermal energy
• They are poor conductors of heat (insulators)

Which of the following is an example of light energy 

• rowing a boat 
• pushing a lawnmower 
• using a lantern to see at night 
• heating food 

Which of the following is an example of chemical energy? 

• a ball rolling down a hill 
• gas burning to heat water 
• water freezing 

An apple sitting on the edge of the table.

• Potential
• Kinetic

Jason kicks the soccer ball into the goal

• potential
• kinetic

What is thermal energy?

• energy from sound
• potential energy in chemical compounds
• the movement of electrons
• heat