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Worksheets8th Grade Science Q2
Total questions: 40
Worksheet time: 51mins
When astronauts walked on the Moon, they used weighted boots to help them walk due to the lower gravitational pull. What difference between Earth and the Moon accounts for the difference in gravity?
density
diameter
mass
volume
What two things does gravity depend on?
Mass and weight
Weight and distance
Mass and force
Mass and distance
Under what condition will a bowling ball slow down if it is rolling down a bowling lane at a constant speed?
An accelerating force is applied to the ball.
An unbalanced external force is applied to the ball.
The mass of the ball is reduced.
The direction of the ball is changed.
What will the net force on the soccer ball be?
50 N to the left
50 N to the right
200 N to the left
200 N to the right
This motion graph represents:
constant speed
acceleration
body at rest
slowing down
If you increase the distance between two magnets, the force between them _______________
eventually disappears.
stays the same.
increases.
decreases.
A student makes an electromagnet out of an iron rod that has wire wrapped around it and is connected to a battery. How could she make the electromagnet stronger?
wrap fewer turns per length
increase the length of the coil
increase the current
increase the length of the rod
A temporary magnet ______________
is a permanent magnet that has been cut in half.
occurs when magnetic domains stay aligned for a short amount of time.
occurs when a magnetic field surrounds a nonmagnetic material.
is a magnetic field with no aligned domains.
At which position will the astronaut feel a greater gravitational pull?
Position B
Position A
Both will feel the same amount of gravitational pull
Both are in zero gravity
Waves transfer (a)
Which letter represents amplitude? (a)
2. What property of a wave is represented by letter B? (a)
6. Which of the following can act as media for a wave? (a)
8. The lowest part of a transverse wave is known as a (a) .
9. The frequency of a wave is measured in (a) .
What does point C represent? (a)
What are the parts of a longitudinal wave? (a)
When a wave bounces off of something and moves in a different direction (a)
Which wave is pictured? (a)
What types of waves can travel through empty space AND mediums? (a)
Light bending as it passes through a raindrop is an example of (a)
A mechanical wave
does require a medium to travel.
does not require a medium to travel.
Which question would you ask to determine the DIFFERENCE between an electromagnetic wave and a mehcanical wave?
Which wave requires a medium?
Which wave can be tranverse?
Which one is a wave?
What wave can travel through matter?
Which electromagnetic waves have the highest frequencies and the shortest wavelengths?
microwaves
visible light
gamma rays
x-rays
Which electromagnetic waves are used in ovens and cell phone communications?
microwaves
infrared rays
gamma rays
ultraviolet rays
Select the correct order of waves on the EMS from the longest wavelength to the shortest wavelength
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
What did our Balloon Lab provide evidence for?
celestial objects are moving toward each other
celestial objects are moving away from each other
celestial objects are static
celestial objects all revolve around each other
Red-Shift: Light moving _____
The more that the spectral lines of a star are shifted to the red end of the spectrum
the larger it is.
the hotter it is
the faster it is moving away from us
Compared to light from a stationary source at the same point, light from an object moving toward you is closer to which side of the spectrum?
blue
red
Select the statements that are true.
The raisins represent the cake.
The raisins represent the galaxies.
The distance between the raisins decreases.
The distance betweens the raisins increases.
The galaxies are getting farther apart as the universe (cake) expands.
Which configuration will result in the greatest gravitational force?
small masses far apart
large masses far apart
small masses close together
large masses close together
The diagram represents a standard spectrum (fingerprint) for an element.
The spectral lines of this element are observed in light from a distant galaxy. Which diagram represents these spectral lines?
