AnswersSY2025-26 - 2002040 MJ Comprehensive Science 1 Sem 1 CRUnit Test

Unit Test — Cumulative exam Answers

0 verified answers1 views
1
Free Preview

The north pole of a bar magnet is moved close to the north pole of a second bar magnet. What prediction best describes how the first magnet responds when it is released?

A
It will move toward the second magnet because like poles repel.
B
It will move toward the second magnet because like poles attract.
C
It will move away from the second magnet because like poles repel.
D
It will move away from the second magnet because like poles attract.
2
Free Preview

The total energy in a system is 675 J. The kinetic energy changes from 296 J to 432 J. Which statement best describes the potential energy of this system?

A
It changes from 296 J to 432 J.
B
It changes from 379 J to 243 J.
C
It changes from 432 J to 296 J.
D
It changes from 243 J to 379 J.
3

What must happen for most areas on Earth to experience all four seasons?

A
The Sun must reach its highest point in the sky.
B
The Northern Hemisphere must experience winter.
C
The axis must be tilted at a certain angle that remains unchanged.
D
The north end of Earth’s axis must always point away from the Sun.
4

What must be included when describing the displacement of an object?

A
measurement and direction
B
direction and speed
C
total distance and position
D
speed and total distance
5

Otis is making a poster about how to preserve sand along the beach. Which of the following suggestions should Otis include on his poster?

A
Build a seawall near the coastline.
B
Put sandbags along the coastline.
C
Build a fence along the coastline.
D
Plant more grass near the coastline.
6

Which process contributes to the formation of tornados?

A
Water droplets freeze, giving off energy.
B
The storm begins to rotate around a central eye.
C
The Coriolis effect creates the spin of the storm.
D
Warm air rises, resulting in a decrease in air pressure.
7

In December, a city in the Southern Hemisphere has warm weather all month long.What causes this to happen?

A
The city experiences fewer hours of daylight.
B
The city is experiencing a winter solstice.
C
There is a high concentration of the Sun’s rays in that region.
D
The Sun reaches its highest point in the sky during this month.
8

Which statement describes Florida?

A
Florida is an island made of limestone.
B
Florida is an island made of shale.
C
Florida is a peninsula made of limestone.
D
Florida is a peninsula made of shale.
9

southern tropicsnorthern tropicsnorthern temperate zonesouthern temperate zone

A
southern tropics
B
northern tropics
C
northern temperate zone
D
southern temperate zone
10

Which is part of the process in the formation of hail pellets?

A
They are tossed up and down in clouds.
B
They lose layers of ice and grow smaller.
C
They grow to less than 5 mm in diameter.
D
They form ice crystals directly from water vapor.
11

Which describes the two ways that energy is measured?

A
in convection and in temperature
B
in temperature and in radiation
C
in radiation and in convection
D
in wavelength and in temperature
12

Which example would most likely decrease friction?

A
using cleats, rather than gym shoes, on a field
B
using shaving cream, rather than shaving on dry skin
C
using a wide parachute, rather than a narrow parachute, when skydiving
D
using sandpaper, rather than regular paper, on wood
13

Which correctly list the three gases that each make up less than 1 percent of Earth’s atmosphere?

A
argon, water vapor, carbon dioxide
B
oxygen, argon, water vapor
C
nitrogen, oxygen, carbon dioxide
D
carbon dioxide, oxygen, argon
14

What is 0.000345 expressed in scientific notation?

A
3.45 × 102
B
3.45 × 104
C
3.45 × 10–2
D
3.45 × 10–4
15

The table shows results of an experiment that was replicated.

Question illustration
A
They are precise and reproducible.
B
They are precise but not reproducible.
C
They are accurate and reproducible.
D
They are accurate but not reproducible.
16

Sara was caught in a thunderstorm while outdoors. She immediately makes sure that she is not near any tall structures or trees. What is Sara most likely trying to avoid?

A
being struck by lightning
B
being hit by thunder
C
being caught by falling hail
D
being carried away by strong winds
17

What percentage of light hits Earth’s surface directly?

A
3 percent
B
5 percent
C
31 percent
D
47 percent
18

Tyler and his family drove from Atlanta to Baltimore. They traveled a total of 678 miles over 2 days.What is the reference point in this scenario?

A
Atlanta
B
Baltimore
C
678 miles
D
2 days
19

The diagram shows organisms a diver observed during an ocean dive.

Question illustration
A
the ocean surface
B
the ocean floor
C
the position of the clownfish
D
the position of the seaweed
20

Which causes a sea breeze?

A
Air temperatures are cooler than normal.
B
Air flows from the poles toward the equator.
C
Air blows over long distances at different speeds.
D
Air above land warms quicker than air over water.

Did you find these answers helpful?

More from this Course

Quiz
6 verified answers

Unit Test

Quiz
10 verified answers

Factors That Affect Climate

Quiz
5 verified answers

Florida's Land and Climate