Forces
What is a Force?
A push or pull exerted on an object.
What is potential energy?
The energy an object has because of its position.
What is a wave?
A disturbance that transfers energy from place to place.
The ejection of electrons from a substance when light is shined on it.
Photoelectric effect
What is magnetic declination?
The angle between geographic north and the north to which a compass needle points.
True or False? Newton's First Law of Motion states that an object's acceleration depends on its mass and on the net force acting on it.
False, That is the definition for Newton's Second Law.
True or False? Most energy can be transformed into other forms of energy.
False
True or False? Constructive Interference is when two waves combine to make a wave with a smaller amplitude than the individual waves.
False, Destructive Interference
True or False? 6 different waves make up the electromagnetic spectrum.
False, 7
True or False? Magnetic declination is an 'angle.'
True
Momentum is calculated by... ?
Mass x Velocity
At the top of a roller coaster is there more potential or kinetic energy?
Potential
What are the two basic properties of a wave?
Distance and Time
Which has longer wavelengths, AM or FM radio signals?
AM
Electric current producing a magnetic field is _______.
Electromagnetism