WorksheetsFCAT Standard 34: SC.7.P.11.2
Total questions: 10
Worksheet time: 5mins
A flashlight uses three different forms of energy. Which of the following is the correct order of the energy transformation to power the flashlight?
Mechanical — Thermal — Light/Heat
Electrical — Chemical - Light/Heat
Chemical — Electrical —Light/Heat
Light/Heat — Electrical — Chemical
The picture shows the process that causes a glow stick to emit light. Based on the picture, which of the following describes the energies involved?
Kinetic energy cracks the stick, allowing gravitational energy to transform into light
Mechanical energy cracks the stick, allowing chemical energy to transform into light
Chemical energy cracks the stick, allowing thermal energy to transform into light
Thermal energy cracks the stick, allowing potential energy to transform into light
Kyle is riding his bicycle. He works very hard to reach the top of a hill and then coasts down the other side. Which statement best explains why Kyle does not need to work as hard as he travels downhill?
Kinetic energy is stored in the bicycle
There is less friction between the road and the bike as it moves downhill
No energy is lost as heat as Kyle rides downhill
Potential energy is converted to kinetic energy as he moves downhill
According to the Law of Conservation of Energy, which statement regarding this track is TRUE?
The cart at position 3 will have more kinetic energy than at position 1
The cart will be travelling slower at position 4 than at position 2
The cart will have more potential energy at position 2 than at position 4
The kinetic energy of the track is equal at all points
Which option describes an example of converting light energy to electrical energy?
plugging in a desk lamp
switching on a stove burner
turning on a solar–powered calculator
turning on a battery–powered flashlight
A man plugs in an iron to press a shirt. Within a couple of minutes the metal part of the iron is very hot. What type of energy transformation is taking place?
chemical energy to light energy
light energy to electrical energy
thermal energy to chemical energy
electrical energy to thermal energy
Which piece of evidence best supports the idea that energy cannot be created nor destroyed, only changed from one form to another?
A spider can spin a web to trap different insects.
A plant must absorb water through its roots to grow.
A person can grow vegetables to eat in his own backyard.
An animal must eat food to be able to run and move around.
If a pot of water is placed over a fire, which of the following transfer of thermal energy would take place?
convection
reflection
transcription
placement
__________ is the energy carried from one object to another because of temperature.
Vibration
Heat
Weather
Water
Heat flow is the transfer of energy from __________.
a cooler object to a warmer object
a solid object to a fluid object
a warmer object to a cooler object
a fluid object to a solid object
