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Physics TEKS P.8.A,B,C

Total questions: 50

Worksheet time: 1hrs 9mins

Name
Class
Date
1.
If F is force, k is spring constant and x is extension, Hooke's Law tells us that:
a)
F=k/x
b)
x=Fk
c)
k=Fx
d)
F=kx
2.
A spring extends 1.5m under load 10N. What is its spring constant?
a)
0.15N/m
b)
10N/m
c)
6.7N/m
d)
15N/m
3.
A 5-newton force causes a spring to stretch 0.2 meter. What is the potential energy stored in the stretched spring?
a)
1 J
b)
0.5 J
c)
0.2 J
d)
0.1 J
4.
5,000 g = ____________ kg
a)
2
b)
50,000
c)
5
d)
10
5.
What force should be applied to compress a spring by 0.013 m if its spring constant is k = 1900 N/m?
a)
1880 N
b)
24.7 N
c)
1900 N
d)
0.127 N
6.

What type of energy does a sound wave have?

a)

Mechanical

b)

Radiant

c)

Electrical

d)

Sound

7.

True or False: Sound needs a medium.

a)

True

b)

False

8.

True or False: Sound waves are faster than light.

a)

False

b)

True

9.

Areas of increased pressure on a sound wave are known as a ----

a)

Rarefaction

b)

Compression

c)

Frequency

d)

Amplitude

10.

The distance from the beginning of one compression to the beginning of the next compression is called a -----

a)

Rarefaction

b)

Frequency

c)

Wavelength

d)

Compression

11.

The number of wavelengths that pass a fixed point each second is known as ----

a)

Hertz

b)

Amplitude

c)

Frequency

12.

The measure of the amount of energy in a wave is ----

a)

Wavelength

b)

Hertz

c)

Frequency

d)

Amplitude

13.

In a transverse wave, the vibrations are (a)   to the direction of the wave.

14.

The vibrations in a longitudinal wave are (a)   to the direction of energy transfer.

15.

Sound waves are (a)   waves.

16.

What type of wave is pictured?

a)

Transverse wave

b)

Longitudinal wave

c)

Wave, what wave?

d)

Slinky wave

17.
What kind of wave is pictured below?
a)
compressional wave
b)
transverse wave
c)
sound wave
d)
mechanical wave
18.

At which position does the child on the swing have the most gravitational potential energy?

a)

W

b)

X

c)

Y

d)

Z

19.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
20.

Review: What type of wave moves up and down or perpendicular to the wave's motion? Also pictured.

a)

Longitudinal

b)

Transverse

21.

Review: What type of wave needs a medium to travel through?

a)

Electromagnetic

b)

Mechanical

22.

Which number on the diagram represents a crest?

a)

1

b)

2

c)

3

d)

4

23.

Which number represents a trough on the diagram?

a)

1

b)

2

c)

3

d)

4

24.

Which number represents the amplitude of the wave in the diagram?

a)

1

b)

2

c)

3

d)

4

25.

Which wave has the highest frequency?

a)

1

b)

2

c)

3

d)

4

26.

If the period of a wave is 2 seconds, then what is the frequency?

a)

1 Hz

b)

1/2 Hz

c)

2 Hz

27.

If the frequency of a wave is 1/5 Hz, then what is the period of the wave?

a)

5 sec

b)

1 sec

c)

2 sec

28.
Which wave diagram has both wavelength (λ) and amplitude (A) labeled correctly?
a)
A
b)
B
c)
C
d)
D
29.
What type of wave is this?
a)
transverse
b)
longitudinal
c)
circular
d)
elliptical
30.
How many cycles are in this wave?
a)
1
b)
2
c)
3
d)
4
31.
What is the wave's amplitude?
a)
4 cm
b)
5 cm
c)
6 cm
d)
8 cm
32.
What is the wave's frequency?
a)
0.25 Hz
b)
0.5 Hz
c)
0.75 Hz
d)
1 Hz
33.
What is the wave's period?
a)
1 s
b)
2 s
c)
3 s
d)
4 s
34.
How many cycles are in this wave?
a)
1
b)
2
c)
3
d)
4
35.
What is the wave's wavelength?
a)
1 m
b)
2 m
c)
3 m
d)
4 m
36.

A wave carries...?

a)

energy only

b)

matter only

c)

nothing. The matter carries the energy

d)

neither

37.
High frequency waves have _________ wavelength.
a)
varying
b)
high
c)
the same
d)
low
38.
 A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?
a)
500 m/s
b)
50 m/s
c)
5 m/s
d)
0.5 m/s
39.
 A wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?
a)
25 m
b)
125 m
c)
5 m
d)
25 m/s
40.
A wave has wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave?
a)
34 m/s
b)
3400 Hz
c)
3400 m/s
d)
34 Hz
41.

A guitar string vibrates with a frequency of 320 hz. If the wavelength of the vibration is 0.23 meters what is the speed of the wave?

a)

320.23 m/s

b)

1391.3 hz

c)

73.6 m/hz

d)

73.6 m/s

42.
A pendulum is 0.75 meters long and has a period of 4.17 seconds. The Pendulum is on an unknown planet.  What is the gravity of the Unknown Planet?
a)
9.8
b)
3.4
c)
1.7
d)
Greater than 9.8
43.
If the length of a simple pendulum is doubled, its period will: 
a)
halve 
b)
increase by a factor of sqrt(2) 
c)
decrease by a factor of sqrt(2)
d)
double 
44.
A net force of 430 N acts to stretch an extension spring.  How far will the spring stretch if its spring constant is 700 N/m?
a)
43.9
b)
0.307 m
c)
1.63 m
d)
0.614 m
45.
What force should be applied to compress a spring by 0.013 m if its spring constant is k = 1900 N/m?
a)
1880 N
b)
24.7 N
c)
1900 N
d)
0.127 N
46.
What is the period on Earth of a pendulum with a length of 2.4 m?
a)
3.1 sec
b)
1.9 sec
c)
9.3 sec
d)
5.1 sec
47.

Based on your findings, which equation could best describe the pendulum’s period?

a)

A

b)

B

c)

C

d)

D

48.
If a force of 20 N stretches a spring 0.5 m, what is the spring constant?
a)
10 N/m
b)
20 N/m
c)
40 N/cm
d)
40 N/m
49.
A 550 kg mass is in simple harmonic motion on a spring, solve for the displacement if the spring constant value for the spring is 98100 N/m and the restoring force is -981 N.  
a)
100 m
b)
.01 m
c)
9.62 x 108 m
50.
A simple harmonic oscillator takes 4.8 s to undergo five complete vibrations. What is the frequency of 1cycle? 
a)
1.04 s
b)
4.8 s
c)
1/4.8 s

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