WorksheetsTopic 4: Thermal Energy
Total questions: 28
Worksheet time: 22mins
Thermal energy that is transferred from a warmer object to a cooler object.
Kinetic energy
Temperature
Heat
Energy cannot be created or destroyed, it can only _________________.
be gained
be lost
transform or transfer
Metal pots and pans are good ____________, to help transfer heat well.
conductors
insulators
When you hold a hot cup of coffee in your hand the heat is transferred from __________ to __________
the cup to your hand
your hand to the cup
When you hold an ice cube in your hand, heat is being transferred from _____ to ___________.
the ice cube to your hand
your hand to the ice cube
As heat is transferred from a hot cup of coffee to your hand, the _______________.
kinetic energy decreases
kinetic energy increases
As heat is transferred from a hot cup of coffee to your hand, the _______________.
thermal energy decreases
thermal energy increases
The amount of energy needed to raise the temperature of a substance by 1 degree Kelvin.
thermal expansion
contraction
specific heat
When you are using a wood burning oven to cook pizza you see light and feel heat. Which of these statements is true about the amount of energy transformed in the oven?
The Law of Conservation of Energy applies to these transformations.
The chemical energy in the logs is lost during the transformation.
The fire is hotter than the logs were, so energy is gained in this transformation.
Energy can change in two different ways. It can undergo a transfer, or it can undergo a transformation. For each of these examples of how energy is changed, write the correct answer in the blank.
When you use an electrical stove, the electrical energy undergoes a _______________ when it changes from electrical energy to thermal energy. When using a wood burning oven the thermal energy/heat from the oven is ___________________ to food you are cooking.
transferred, transformation
transformation, transferred
Suppose a space mission is testing samples of the materials listed in the table. The temperature changes are the same for each material tested and the same amount of mass is used for each test. Which statement would the researchers find to be true? Choose the two that apply.
It takes more energy to raise the temperature of a sample of beryllium than it does for a sample of titanium.
It takes less energy to raise the temperature of a sample of beryllium than it does for a sample of titanium.
It takes more energy to raise the temperature of a sample of stainless steel than it does for a sample of beryllium.
It takes less energy to raise the temperature of a sample of stainless steel than it does for a sample of beryllium.
