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HSE 8th Grade Final Exam Review Flashcards | StudBud
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HSE 8th Grade Final Exam Review
HSE 8th Grade Final Exam Review
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Final exam review that covers electricity, motion, forces, weather, and Earth Science
Flashcards
35 cards
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Questions
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Answers
1
A series circuit has a bulb with 4 ohms of resistance in a 20 volt system. What's the current?
5 watts
80 amps
5 amps
80 watts
2
The unit for current is
amps
watts
ohms
volts
3
An example unit for momentum is
10 kg x m/s
10 m/s
10 m/s due west
10 kg
4
If the y axis is distance in meters, the speed from 0-5 seconds is
300 m/s
55 m/s
12 m/s
15 m/s
5
To increase the strength of an electromagnet....
loosen the coils
add more resistance
add more coils
decrease the current
6
Two factors affecting the gravitational force of attraction between two objects are
mass and distance
volume and force
volume and distance
mass and volume
7
Ocean currents typically travel from the ____________ to the poles and back again.
equator
core
crust
prime meridian
8
If the y axis represents VELOCITY in m/s, the time period from 10-15 seconds represents
not possible
going backward
slowing down
speeding up
9
The flow of energy/electrons through matter
electric current
resistance
voltage
circuit breaker
10
The difference between the area of high and low potential is
current
power
voltage
resistance
11
The opposition a material offers to a moving charge
voltage
discharge
current
resistance
12
Which is not a device that makes a circuit incomplete when too much current is detected?
circuit breaker
fuse
outlet
GFCI
13
The unit for resistance is
ohms
volts
watts
amps
14
Look at the picture. In which circuit would the light be brighter?
neither - they are open
series
parallel
they are both equally bright
15
The source of all energy for convection currents on the surface of the Earth
outer core
sun
moon
inner core
16
The tendency of any object to resist any change in it's motion is
velocity
speed
momentum
inertia
17
The unit for power is
ohms
volts
amps
watts
18
The thin layer of Earth that we live on.
inner core
outer core
crust
mantle
19
If a hammer and a feather are dropped from the same height in vacuum (no air friction), then...
the feather lands first
nothing lands in a vacuum
they land at the same time
the hammer lands first
20
If an electric charge moves from one object to another, the particle that moves is...
atom
neutron
proton
electron
21
On a distance vs. time graph, 5-10 seconds represents...
stopping
going backward
constant acceleration
constant speed
22
Look at the formula, how much energy does a 4kW decoration use in 2 hours?
2 kWh
6kWh
8kWh
8000kWh
23
Mrs. Hiatt's bunny's name is
Ardy
Luke
Bagel
Ben
24
The picture best describes...
a parallel circuit
an open circuit
a short circuit
a series circuit
25
When a falling object will no longer accelerate (usually due to air friction) it has reached
terminal velocity
terminal gravity
terminal force
mach speed
26
The fixed point that a lever pivots about is called the:
effort
fulcrum
inclined plane
load point
27
States that voltage is equal to current multiplied by the resistance.
Watt's Law
Law of Electric Charge
Ohm's Law
Law of Conservation of Charge
28
A wheel barrow is an example of a
1st class lever
3rd class lever
a screw
2nd class lever
29
The sudden leap of electrons from one place to another
Ohm's Law
voltage
resistance
electric discharge
30
Transfer of thermal energy by movement of a fluid.
induction
divergent
convection
convergent
31
Any change over time is a
mate
gate
rate
date
32
The force you apply to a machine is the
output force
gravitational force
effort force
load force
33
A repeating process always involving evaporation, condensation and precipitation
Earthquake
Volcano
Water Cycle
Ocean Current
34
For every action, there is a equal and opposite reaction - this is
Newton's 1st Law
Newton's 2nd Law
Newton's Law of Conservation
Newton's 3rd Law
35
Rapid change in Earth's plates pushing against each other then slipping to release stress.
earthquake
hurricane
tornado
volcano
