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WorksheetsScience NCFE #4
Total questions: 25
Worksheet time: 20mins
Which is needed for hurricanes to form off the west coast of Africa?
very shallow water
very deep water
moving water
warm water
Which direction do winds blow in jet streams on Earth?
from east to west
from west to east
from south to north
from north to south
A rotating high wind that is in contact with the ground and has extremely low pressure is considered which type of storm?
blizzard
hurricane
thunderstorm
tornado
Weather patterns in the United States are mainly affected by the polar jet stream and the subtropical jet stream. During times when the subtropical stream is mainly positioned over the Pacific Ocean, many southern states will experience which weather condition?
El Niño
La Niña
occluded front
stationary front
Above is a simplified weather map of the continental United States.
As a cold front moves, the colder, more dense air moves below the warmer air, and this causes storms.
As a cold front moves, the colder, more dense air moves above the warmer air, and this causes storms.
As a cold front moves, the colder, less dense air moves below the warmer air, and this causes storms.
As a cold front moves, the colder, less dense air moves above the warmer air, and this causes storms.
Which best describes why carrying a box means that work is being done?
A force is being exerted only on the box.
The box is moving over a distance without added force.
No force is being exerted on the box or the person carrying it.
A force is being exerted over a distance on the box and on the person carrying it.
Which best describes how the average speed is different from constant speed?
Average speed is the total distance traveled divided by total time regardless of the speed at any given time; constant speed never changes.
Average speed never changes; constant speed is the total distance traveled divided by total time regardless of the speed at any given time.
Average speed is total time divided by distance traveled; constant speed never changes.
Average speed never changes; constant speed is total time divided by total distance.
A farmer sprayed his crops with an insecticide to improve his crop production. Most of the insects died, but a few survived the spraying. Which can be inferred about the offspring of the surviving insects?
Their offspring will have mutations.
They will most likely be killed by the insecticide.
They will most likely be able to survive exposure to the insecticide.
They will be genetically identical to the insects that were killed by the insecticide.
Which organelle is unique to the plant cell?
Organelle 3
Organelle 6
Organelle 4
Organelle 7
Which gas emission from cars causes the formation of acid rain and photochemical smog?
carbon dioxide
nitrogen oxide
oxygen
ozone
Which best describes a known cause of a change in the genes (DNA)?
cancer
malaria
UV radiation
poor nutrition
Which adds the most moisture to Earth’s atmosphere?
respiration of animals
transpiration of plants
evaporation from oceans
precipitation from clouds
Which process changes water vapor into the liquid state?
condensation
deposition
melting
sublimation
According to Sir Isaac Newton, what will happen to an object that is already in motion when acted upon by balanced forces?
It will stay in motion.
It will eventually stop.
It will immediately stop.
It will accelerate indefinitely.
A man was pedaling a bicycle at an average speed of 5 miles per hour. After 3 hours, how far had the man traveled? (speed = distance ÷ time)
2 miles
5 miles
8 miles
15 miles
Which compound machine best describes two levers with cutting edges that are wedges?
pulley
ramp
scissors
screw
A runner completed a marathon, but stopped for two rest breaks during the race. Which graph best depicts the motion of the runner during the race?
Which is the energy source that drives global convection?
gravity
sun
water
wind
Which is best described as an inclined plane wrapped around a central cylinder?
baseball bat
fishing pole
pulley
screw
Which best describes two equal forces that are acting in opposite directions on an object?
friction forces
balanced forces
centripetal forces
gravitational forces
The graph above shows the distance a bus traveled over seven hours. When is the bus traveling the fastest?
between hours 0 and 1
between hours 4 and 5
between hours 5 and 6
between hours 6 and 7
Which combination of atmospheric conditions would most likely increase the chances for heavy rains in an area?
low-pressure system and warm, dry air masses
low-pressure system and warm, wet air masses
high-pressure system and warm, dry air masses
high-pressure system and warm, wet air masses
What causes the Coriolis effect that deflects global winds?
the moon’s revolution around Earth
Earth’s revolution around the sun
the moon’s rotation on its axis
Earth’s rotation on its axis
Which is needed for hurricanes to form off the west coast of Africa?
very shallow water
very deep water
moving water
warm water
Which best describes how relative humidity would change if the air temperature decreased?
It would increase.
It would decrease.
It would stay the same
There is no relationship between relative humidity and air temperature.
