Practice - Intro Physics 2,3,5,6 - Waves, Momentum

Momentum before a collision is equal to momentum after a collision. This is an example of ______.

• conservation of energy

• conservation of momentum

• Newton's 4th Law

• wave properties

A mechanical wave can be either a _____wave or a ______wave.

• tsunami; tidal

• hello; goodbye

• permanent; temporary

• transverse; longitudinal

If a wave has a period of (T) of 0.0167 sec, then it's frequency is ____.

• .0167 HZ

• diurnal

• 60 Hz

• 20 m

What is the equation for momentum?

As the frequency of a sound wave increases, the pitch _____.

• tightens

• dies

• randomizes

• increases

As the tension of a string or coil decreases, the wavelength of the string or coil will _______.

• get longer

• get shorter

• harmonize

• remain the same

If two objects collide and scatter apart, this is called a ______collision.

• inelastic

• plastic

• fantastic

• elastic

If momentum is conserved after a collision, then the amount of momentum before the collision is _____ the amount after.

• greater than

• less than

• equal to

• inverse to

• 0.4 m/sec

• 14 m/sec

• 40 m/sec

• 60 m/sec

If a wave has a velocity of 50 m/sec, and a frequency of 2 m, then what is the wavelength of the wave pattern?

• 25 m

• 25 sec

• 25 kg

• 25 N