Electrostatic
Magnetism
Waves
Refraction,Reflection,DIffraction
Random
100
Define Electrostatic
Stationary charges or fields that has electric currents.
100
What is Magnetism?
Magnetism is the force exerted by magnets that attract or repel each other.
100
What are the 2 types of waves?
Compressional wave and longitudinal wave
100
What is Refraction?
Refraction is the bending light that passes through one medium to another.
100
If two charges have an electric force F between them and one of the charges is doubled,what happen will happen to the force?
The force will be doubled.
200
What is Friction?
Friction is the resistance to motion of an object moving relative to another.
200
What type of field induces an electric charge movement which results in producing an electric current?
Magnetic Field
200
What is the relationship between frequency and wavelength of a wave?
Wavelength is inversely proportional to the frequency.
200
What is Diffraction caused by?
Diffraction is caused by a wave of light that shifts to another diffracting object.
200
What is the relationship wavelength and amplitude?
There is no relationship between these two.
300
How do objects loses their electrons?
Objects lose their electrons by rubbing the object against another object.
300
How do magnets lose their magnetism?
If you heat up a magnet, it will lose its magnetism.
300
How does the amplitude of a wave affects its energy?
If you increase the amplitude of a wave, you can also increase its energy.
300
What is the relationship between Refraction and Diffraction?
In refraction, the change in direction is changed due to the speed and bending of waves and in diffraction, it is changed due to the bending of the wavefronts.
300
What are 3 examples of non-magnetic things?
Paper, Plastic, Gold, Rubber, Leather, & Copper.
400
Two pieces of transparent tape are pulled off a wooden tabletop. When they are brought near each other, they do what?
Repel each other because they were prepared the same way.
400
Why does a magnetic compass point to the Geographic North Pole?
The north pole of a magnet always points towards the direction of geographical north of the Earth.
400
How do waves transfer energy and momentum through a medium?
Transfers by the cause of particles of the medium to vibrate and oscillate.
400
A ray of light is incident on a plane mirror and the angle of incidence is 25 degrees. What is the angle of reflection?
25 degrees.
400
What type of wave does not require a medium?
Electromagnetic Waves
500
A repulsive force exists between what two particles?
2 Protons
500
How does the magnetic field strength change with distance from a magnet?
The distance from the magnet increases results in the strength of the magnetic field decreases.
500
Explain Doppler Effect
Doppler effect is the change in frequency or wavelength and it applies to all waves like sound waves or electromagnetic.
500
Why does the pencil appears broken?
The pencil bends when its placed inside the cup filled with water.
500
Is this Interference or Diffraction?
DIffraction