Lab: Thermal Energy Transfer — Cumulative exam Answers

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When a hammer strikes a compound formed by covalent bonds, what will most likely happen to the compound?

A
It will break into many pieces.
B
It will reform into a new shape.
C
It will spread out and then return to its original shape.
D
It will stay solid and resist the force of the hammer.
2
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Covalent bonds tend to make atoms more stable by helping them

A
fill up their innermost electron shell.
B
fill up their outermost electron shell.
C
empty out their innermost electron shell.
D
empty out their outermost electron shell.
3

Which two layers are part of the thermosphere?

A
exosphere and ionosphere
B
ionosphere and mesosphere
C
mesosphere and stratosphere
D
stratosphere and troposphere
4

Which of these actions would decrease heat transfer between two objects?

A
increasing the temperature of the warmer object
B
increasing the area of their contact
C
reducing the thermal energy of the cooler object
D
reducing the time of their contact
5

During a camping trip, Sierra collected dry branches and broke them into smaller pieces. She then placed the sticks in a fire pit and used a match to light the sticks on fire. Next, she propped a metal pan of water over the fire and heated it until the water boiled.

A
physical change: breaking stickschemical changes: lighting the fire, boiling water
B
physical change: boiling waterchemical change: breaking sticks, lighting the fire
C
physical changes: lighting the fire, boiling waterchemical change: breaking sticks
D
physical changes: breaking sticks, boiling waterchemical change: lighting the fire
6

Jerimiah is studying Wave A and Wave B. Wave A is traveling at 3 hertz, and Wave B is traveling at 1.2 hertz.

A
Refraction would occur.
B
Interference would occur.
C
The resulting wave would travel at 4.2 hertz.
D
The crest of Wave A would overlap the trough of Wave B.
8

What happens when the Sun emits more energy than normal?

A
Solar flares and sunspots occur, increasing Earth’s temperature.
B
Sunspots and volcanic eruptions occur, increasing Earth’s temperature.
C
Volcanic eruptions and movement of continents occur, decreasing Earth’s temperature.
D
Movement of continents and solar flares occurs, decreasing Earth’s temperature.
9

Which materials are moved by runoff?

A
nutrients
B
vegetation
C
large rocks
D
paved surfaces
10

Study this image of space.

Question illustration
A
a nebula
B
a red giant
C
a supernova
D
a neutron star
12

Gymnasts often practice on foam floors, which increase the collision time when a gymnast falls. What effect does this have on collisions?

A
The change in momentum needed to stop the gymnast is increased.
B
The change in momentum needed to stop the gymnast is decreased.
C
The force exerted by the floor on the gymnast decreases.
D
The force exerted by the floor on the gymnast increases.
13

Jan is holding an ice cube. What causes the ice to melt?

A
Thermal energy from the ice is transferred to the air.
B
Thermal energy from Jan’s hand is transferred to the ice.
C
The air absorbs thermal energy from Jan’s hand.
D
Jan’s hand absorbs thermal energy from the ice.
14

How do changes in wind currents affect the short-term climate in a region?

A
Prevailing winds can cause a milder climate with heavy rain.
B
Global winds can cause a longer summer.
C
Prevailing winds can cause heavy rains or a dry climate.
D
Global winds can cause a longer winter.
15

Which is an example of a chemical change?

A
frying an egg
B
boiling water
C
melting butter
D
chopping onions
16

Which best compares and contrasts how John Newlands and Dmitri Mendeleev organized elements?

A
Both Newlands and Mendeleev arranged elements according to their chemical properties, but only Newlands used atomic mass as well.
B
Both Newlands and Mendeleev arranged elements according to their atomic masses, but only Mendeleev used chemical properties as well.
C
Both Newlands and Mendeleev organized elements into groups, but only Newlands used a table with rows and columns.
D
Both Newlands and Mendeleev organized elements into a table with rows and columns, but only Mendeleev named different groups of elements.
17

When does the Northern Hemisphere receive the fewest hours of daylight?

A
during the fall equinox
B
during the winter solstice
C
during the spring equinox
D
during the summer solstice
19

Which factor increases as a result of increasing altitude?

A
air pressure
B
air density
C
size of gas molecules
D
space between gas molecules

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