What must happen for an electromagnet to have a magnetic field?

Must be connected to an electrical source

Instrument used for navigation, A floating magnet

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SAGE Science Review - Fifth Grade

19 termsStudBud Administration311 plays

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Questions 19

Answers

1
Earth's magnetic field and a bar magnet both attract to particles in the same location
at opposite ends
evenly distributed around the outside
first to the middle, then to the ends
the middle
2
Many valleys in Northern Utah are U-shaped. How long does it take to carve a U-shaped valley?
thousands of years
10-20 years
100 years
1-5 years
3
In 100 years, how much will a butte change?
very litte
will lose half its size
a hole will be in its place
it will have disappeared
4
What must happen for an electromagnet to have a magnetic field?
Must be lined up with Earth's magnetic field
Must be connected to an electrical source
Must touch another magnet
Must be heated
5
What happens when two north poles of magnets are placed together?
Their magnetism is eliminated
They repel
They attract
The strength of the magnet is doubled
6
What characteristics do magnetic surfaces have?
Shock when you touch
Push or pull without touching
Fall faster than many objects
Always black
7
How long did it take for the Grand Canyon to form?
100 years
5000 years
100,000 years
5 million years
8
What forces create a butte?
water erosion and uplift
weathering and wind erosion
glaciers
volcanic eruptions
9
Landscape Arch had to be closed to visitors near the base. How could an arch become dangerous?
Erosion
The soil could become polluted
Snakes are attracted
Ice could fall off
10
What three substances are attracted to magnets?
Aluminum
Cobalt
Nickle
Iron
11
What did ancient people do with lodestones?
Started fires with them
Used as compasses
Used as radio transmitters
Basic material for sculptures
12
What is a compass?
Instrument used for navigation
A floating magnet
An instrument to measure angles
An electromagnet
13
What would earth's surface look like if there was no uplift?
completely underwater
flat and smooth - no mountains
mountain ranges every 500 miles
lots of asteroid and comet holes - like the moon
14
In the spring, rocks often fall onto mountain roads. Why?
Days are longer, therefore there is more light
Freezing temperatures at night
The rocks have grown during winter
The snow is no longer holding them
15
The river banks look different from last year. Why?
Winter ice
Erosion
Wind blows rocks into rivers
Rodney forgot where he was.
16
How is Earth's magnetic field similar to that of a magnet?
It has north and south poles
Winds blow from East to West
Earth's oceans all have currents
It is hundreds of miles long
17
A seismography helps predict
hurricanes
earthquakes
avalanches
snowstorms
18
Which type of erosion moves the most rock on earth's surface?
glaciers
gravity
water
wind
19
How do volcanoes, earthquakes and uplift affect earth's surface? They create...
mountains and valleys
deep ocean basins
arctic ice caps
great plains of rich soil

SAGE Science Review - Fifth Grade Flashcards | StudBud

SAGE Science Review - Fifth Grade

19 termsStudBud Administration311 plays

Imported from external platform

Flashcards19 cardsFPractice quizPHost liveL

Questions 19

Answers

1
Earth's magnetic field and a bar magnet both attract to particles in the same location
at opposite ends
evenly distributed around the outside
first to the middle, then to the ends
the middle
2
Many valleys in Northern Utah are U-shaped. How long does it take to carve a U-shaped valley?
thousands of years
10-20 years
100 years
1-5 years
3
In 100 years, how much will a butte change?
very litte
will lose half its size
a hole will be in its place
it will have disappeared
4
What must happen for an electromagnet to have a magnetic field?
Must be lined up with Earth's magnetic field
Must be connected to an electrical source
Must touch another magnet
Must be heated
5
What happens when two north poles of magnets are placed together?
Their magnetism is eliminated
They repel
They attract
The strength of the magnet is doubled
6
What characteristics do magnetic surfaces have?
Shock when you touch
Push or pull without touching
Fall faster than many objects
Always black
7
How long did it take for the Grand Canyon to form?
100 years
5000 years
100,000 years
5 million years
8
What forces create a butte?
water erosion and uplift
weathering and wind erosion
glaciers
volcanic eruptions
9
Landscape Arch had to be closed to visitors near the base. How could an arch become dangerous?
Erosion
The soil could become polluted
Snakes are attracted
Ice could fall off
10
What three substances are attracted to magnets?
Aluminum
Cobalt
Nickle
Iron
11
What did ancient people do with lodestones?
Started fires with them
Used as compasses
Used as radio transmitters
Basic material for sculptures
12
What is a compass?
Instrument used for navigation
A floating magnet
An instrument to measure angles
An electromagnet
13
What would earth's surface look like if there was no uplift?
completely underwater
flat and smooth - no mountains
mountain ranges every 500 miles
lots of asteroid and comet holes - like the moon
14
In the spring, rocks often fall onto mountain roads. Why?
Days are longer, therefore there is more light
Freezing temperatures at night
The rocks have grown during winter
The snow is no longer holding them
15
The river banks look different from last year. Why?
Winter ice
Erosion
Wind blows rocks into rivers
Rodney forgot where he was.
16
How is Earth's magnetic field similar to that of a magnet?
It has north and south poles
Winds blow from East to West
Earth's oceans all have currents
It is hundreds of miles long
17
A seismography helps predict
hurricanes
earthquakes
avalanches
snowstorms
18
Which type of erosion moves the most rock on earth's surface?
glaciers
gravity
water
wind
19
How do volcanoes, earthquakes and uplift affect earth's surface? They create...
mountains and valleys
deep ocean basins
arctic ice caps
great plains of rich soil