Momentum, Impulse,
and Collisions
and Collisions
What is momentum?
Inertia (or mass) in motion.
What is the formula for Work?
Work = Force x distance
What is the distance from the midline to the crest called?
Amplitude.
Which type of wave moves fastest in solids?
Sound waves.
What property is caused by an object gaining or losing electrons?
Electric charge.
An object with a mass of 3 kg has a momentum of 24 kg*m/s, what is the velocity of the object?
8 m/s.
What is the unit of Energy?
Joule (J)
What is it called when a wave changes direction as it enters a new medium?
Refraction
Which type of wave is made up of oscillating electric and magnetic fields?
What property is caused by having free electrons that all have the same spin?
Magnetism.
What is the symbol for impulse?
J.
What does the Law of Conservation of Energy say?
Energy cannot be created or destroyed.
What is it called when waves spread out around obstacles or through narrow openings?
Diffraction
Which type of wave can move through a vacuum?
Light waves.
What is the voltage in a circuit that has a current of 100 Amps and a resistance of 5 Ohms?
V = 500 Volts.
Which type of collision between two objects causes them to stick together?
Inelastic collision.
What are the six simple machines?
Lever, Inclined Plane, Wedge, Wheel and Axle, Pulley, and Screw.
What do waves transfer from one place to another?
Energy.
Which type of wave is produced by vibrations that disturb the surrounding matter?
Sound waves.
Which of Maxwell's Equations tells us that a changing electric field creates a magnetic field?
Ampere-Maxwell Law
Which law tells us that a cannon will move backwards after launching a cannonball forwards?
The Law of Conservation of Momentum.
Which Theorem tells us that any gain or reduction in energy is the result of work?
The Work-Energy Theorem.
What do we call a wave that requires a medium to travel?
Which type of wave experiences the Doppler Effect?
Both sound and light waves.
Which of Maxwell's Equations tells us that a changing magnetic field creates an electric field?
Maxwell-Faraday Law