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Worksheets8th - B3 Part 1
Total questions: 34
Worksheet time: 20mins
For every action, there is an equal and opposite reaction.
Newton's
1st
Law of Motion
Newton's
2nd
Law of Motion
Newton's
3rd
Law of Motion
If sound is louder or a light is brighter, What does this mean about the amplitude of the wave?
The Amplitude is smaller
The Amplitude is greater
The Amplitude is always the same
The Amplitude is louder
In the picture, which number point to the wave's amplitude?
1
2
3
4
In the picture, which number points to the wave's wavelength?
1
2
3
4
If a sound is softer or a light is dimmer, what does this mean about the amplitude of the wave?
The amplitude is smaller
The amplitude is greater
The amplitude is always the same
The amplitude is louder
Which label shows the wavelength of this wave?
1
2
3
4
All waves have...
Wavelength, frequency, rest point & speed
Wavelength, frequency, rest point, & amplitude
Wavelength, frequency, amplitude & speed
Wavelength, amplitude, rest point & speed
Waves can only be transverse or longitudinal.
True
False
Does yarn conduct electricity?
Yes
No
Sometimes
Electricity happens when:
Protons bump into each other
Electrons move from one place to another
Potential energy is stored
A car strikes a power line
The magnetic field and electric field are parallel to each other
True
False
What does a magnet stick to?
Tree
Plastic straw
Iron
Aluminum
Every magnet has:
A south pole
A north pole
A magnetic field
All of the above
The names of the poles on a magnet are called
Northeast & southwest
East and west
North and south
Kanye West
How many poles does a magnet have?
1
2
3
4
An open circuit:
Will not allow electricity to flow
Will gain electrons from friction
Will conduct heat
Will repel magnets
A closed circuit is:
A magnetic field of electromagnet
Circuit in which current is able to flow and light up a bulb
A battery connected to only wires
Unlike charges attracting each other
Which is the best written response for this question: Explain and give two examples for potential energy.
Potential energy is a rock at the top of a hill and a roller coaster at the top.
potential energy is stored energy.
Potential energy is stored energy for example a rock at the top of a hill and a roller coaster at the top.
Potential energy is going up for example a rock at the top of a hill and a roller coaster at the top.
What is an example of the third law of motion?
Pulling a tablecloth from under a dish
Pushing a shopping cart vs pushing a car
A rocket blasting off
At which location does the ball have the greatest amount of kinetic energy?
1
2
3
4
What does kinetic energy do?
It is due to the motion
It starts and stops the motion
Gotta go fast
An object that moves faster
What is potential energy?
It will go in the future
Stopping an object
It goes faster
It moves upward
Which is an example of kinetic energy.
A rock falling off a cliff
A trophy on the top shelf
At the top of a roller coaster
An apple about to fall off a desk
How does gravity affect kinetic energy?
It decreases
It increases
Stays the same
All of the above
The mass and the ______ of an object affect the amount of energy it possesses.
Friction
Gravity
Thermal energy
Speed
