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Day 8 - Energy
Test Description: Energy PE KE Transfer of Forms of Energy Law of Conservation of Energy
Instructions: Answer all questions to get your test result.
1) (Figure 4) If potential energy is stored energy, and kinetic energy is energy in motion, where does the skier have the greatest amount of potential energy
A
at the bottom of the hill
B
at the top of the hill
C
in the middle of the hill
D
in the ski lodge
2) When kinetic energy is reduced due to friction (and an object slows), which form of energy does the kinetic often get converted into?
A
more kinetic
B
thermal/ heat
C
elastic potential
D
gravitational potential
3) Kinetic energy is in any object that is moving. Where will an object on a hill have the greatest kinetic energy
A
at the bottom of the hill
B
none of these
C
at the middle of the hill
D
at the top of the hill
4) If you saw a diagram that showed the flow of energy within a person when they eat food and convert it into a usable form of energy for activities such as running. Which energy transformation does this process represent?
A
Chemical energy to mechanical energy
B
Mechanical energy to thermal energy
C
Chemical energy to thermal energy
D
Thermal energy to chemical energy
5) Energy transformation that occurs when the sun gives energy to an apple tree so it can grow.
A
nuclear to chemical
B
chemical to electrical
C
radiant to chemical
D
radiant to thermal
6) Potential energy related to an object's height is called _____ potential energy.
A
elastic
B
gravitational
C
kinetic
D
thermal
7) Total energy of a system including the kinetic energy and potential energy of its particles
A
electrical energy
B
sound energy
C
light energy
D
thermal energy
8) A car burning a fossil fuel so it can move transforms _____ energy into mechanical energy.
A
electrical
B
electromagnetic
C
chemical
D
nuclear
9) Which organelle is responsible for converting radiant energy (sunlight) into chemical energy (carbohydrates)?
A
chloroplast
B
cell wall
C
lysosomes
D
mitochondria
10) A Speaker converts Electrical Energy to _____________ then to Sound Energy
A
Mechanical Energy
B
Potential Energy
C
Thermal Energy
D
Chemical Energy
11) On a cold winter day, Matilda rubs her hands together. Stored chemical energy is transformed into mechanical energy. Due to the Law of Conservation of Energy, some of the energy is also transformed into _________.
A
kinetic energy
B
thermal (heat) energy
C
light energy
D
solar energy
12) Any time an energy conservation takes place, some of the original energy is converted to which one of the following/
A
potential
B
light
C
sound
D
thermal
13) The sun transforms nuclear energy into ultraviolet, infrared, and gamma energy all forms of _______________ energy.
A
mechanical
B
sound
C
electromagnetic
D
thermal
14) A nuclear power plant converts nuclear energy in to which type of energy that powers many buildings and homes?
A
thermal energy
B
light energy
C
potential energy
D
electrical energy
15) A hydroelectric dam uses the flow of water to turn a turbine. The turbine turns a magnet to produce electricity. What energy transformation occurs in a hydroelectric power plant?
A
chemical to mechanical
B
mechanical to electrical
C
chemical to electrical
D
electrical to mechanical
16) Wind is the movement of air caused by differences in air pressure. What is the ultimate energy source for wind?
A
the water cycle
B
the sun
C
the curvature of Earth
D
ocean surface currents
17) Convert is
A
a support a statement with evidence
B
to move from one object to another or one place to another
C
to change from one type to another
D
make clear how your evidence supports your answer
18) a chemical process by which plants use light energy (radiant energy) to make sugar (chemical energy) from water and carbon dioxide
A
COMPOSITION
B
PHOTOSYNTHESIS
C
PRIMARY
D
PRODUCER
19) Which form of energy is made up of gravitational, stored mechanical, and motion energy?
A
thermal
B
mechanical
C
nuclear
D
radiant
20) A battery operated flashlight needs _______ energy to work and transforms it into electrical energy , radiant energy and a little thermal energy.
A
electrical
B
nuclear
C
solar
D
chemical
*select an answer for all questions
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