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M5 - Unit Test - waves 25

Total questions: 11

Worksheet time: 30secs

Name
Class
Date
1.

Free Q: It is the shortest distance between points where the wave pattern repeats itself.

a)

amplitude

b)

pulsating time

c)

wavelength

d)

surface wave

2.

This law states that the force exerted by a spring is directly proportional to the amount that the spring is stretched.

a)

Periodic Motion Law

b)

Spring Constant Law

c)

Reverse Force Law

d)

Hooke’s Law

3.

The term used to define a motion/movement that repeat in a regular cycle.

a)

trajectorially motion

b)

periodic motion

c)

repetitive motion

d)

harmonic movement

4.

_______ is the motion in which the force that will restore the object to its equilibrium position:

a)

complex resistive motion

b)

simple harmonic motion

c)

simple oscillating movement

d)

complex amplified movement

5.

Consisting of a massive object that is suspended by a string or light rod and swinging in a repetitive motion.

a)

swing

b)

lever

c)

periodic ball

d)

pendulum

6.

If the pitch/frequency of sound is increased, which changes will follow?

a)

wavevelocity will increase

b)

wavelength will decrease

c)

amplitude will decrease

d)

wavevelocity will decrease

7.

Potential Energy in spring is represented in formula as (hint: Petu Kicks!):

a)

2kx

b)

-kx

c)

2(k²)x

d)

½ kx²

8.

What is the force acting on a spring with a spring constant of 130 N/m that is stretched 16.8 cm? hint: 'fix'

a)

21.84 N

b)

18 N

c)

2184 N

d)

7.7 N

9.

What is the length of a pendulum that has a period of 2.1 s?

a)

14.75 m

b)

1.09 m

c)

6.88 m

d)

2.52 m

10.

Calculate for your fundamental frequency if you have 6th harmonic = 420 Hz:

a)

70 Hz

b)

2520 Hz

c)

0.08 Hz

d)

426 Hz

11.

Calculate for 4-loop standing wavelength if the string has a length (L) = 1.8 m:

a)

7.2 m

b)

0.9 m

c)

2.22 m

d)

0.45 m