8th Grade Unit 6 Energy And Matter Question Preview (ID: 47062)


Energy And Matter. TEACHERS: click here for quick copy question ID numbers.

Slicing a piece of bread is considered a ____ change, while toasting a piece of bread is a _____ change.
a) physical; chemical
b) chemical; physical
c) chemical; chemical
d) physical; radiant

Atoms are composed of _______, ________, and _______.
a) protons; neutrons; electrons
b) photons; energy; chemicals
c) elements; compounds; protons
d) compounds; chemicals; elements

A stretched rubber band has __________ energy
a) elastic potential
b) gravitational potential
c) chemical potential
d) probable lunch detention

Thermal energy transferred by objects that are touching is called
a) conduction
b) convection
c) radiation
d) potential energy

Thermal energy that is transferred via electromagnetic waves is called
a) radiation
b) conduction
c) convection
d) convection currents

Thermal energy which is transferred in fluids such as air and water is called
a) convection
b) conduction
c) radiation
d) swimming

The process in which the nuclei of atoms are split, releasing enormous amounts of energy is called
a) nuclear fission
b) nuclear fusion
c) nuclear metal
d) heavy metal

A black car and a white car are parked in the same lot on a summer day. Which one will absorb more energy?
a) black
b) white
c) both
d) neither

The law of conservation of energy states that energy cannot be _________ or ____________, it can only ____________.
a) created, destroyed, change forms
b) change forms, created, destroyed
c)
d)

An ________ reaction absorbs heat, where an _________ reaction releases heat.
a) endothermic, exothermic
b) exothermic, endothermic
c) endothermic, radiant
d) radiant, potential

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