Have an account?
Skip to Content
Build your own quiz
Suggestions for you
15 questions
Show Answers
See Preview
- 1. Multiple Choice
If a wave has a frequency of 0.4 Hz and a wavelength of
15 m , what is velocity ?
0.2 m/s
6.0 m/s
38 m/s
60 m/s
- 2. Multiple Choice
A circuit has 2.25 amps of current and a resistance of
4.00 Ω. What is the the voltage difference across the circuit ?
9.00 V
6.25 V
1.78 V
0.56 V
- 3. Multiple Choice
A copper wire is connected across a constant voltage source.Which change will cause an increase in the current flowing through the wire ?
an increase in the length of the wire
an increase in the resistance of the wire
an increase in the diameter of the wire
an increase in the insulation around the wire
- 4. Multiple Choice
Which will cause an electromagnetic solenoid to increase its strength ?
replacing the wire with an insulator inside the solenoid
increasing the temperature surrounding the solenoid
increasing the number of wire coils in the solenoid
removing the iron core from the solenoid
- 5. Multiple Choice
If the velocity of a sound wave remains constant and its frequency increases, which characteristic of the wave will decrease?
amplitude
wavelength
energy
speed
- 6. Multiple Choice
How does the energy of ultraviolet radiation compare to the energy of microwaves?
Ultraviolet radiation has less energy than microwaves, because ultraviolet radiation has a lower frequency.
Ultraviolet radiation has more energy than microwaves, because ultraviolet radiation has a higher frequency.
Microwaves have less energy than ultraviolet radiation, because microwaves have shorter wavelengths.
Microwaves have more energy than ultraviolet radiation, because microwaves have longer wavelengths.
- 7. Multiple Choice
A certain wave has compressions and rarefactions. How should this wave be classified?
as a longitudinal wave
as a surface wave
as a transverse wave
as an electromagnetic wave
- 8. Multiple Choice
Which statement describes the wave interactions in sound navigation and ranging (SONAR)?
Sound is transmitted through the water and diffracted by hard surfaces.
Sound is transmitted through the water and reflected by hard surfaces.
Sound is diffracted through the water and transmitted by hard surfaces.
Sound is diffracted through the water and reflected by hard surfaces.
- 9. Multiple Choice
A wave has a frequency of 4.0 Hz. If it is traveling at a velocity of 20 m/s, what is the wavelength of the wave?
80 m
16 m
5.0 m
0.2 m
- 10. Multiple Choice
Thallium-208 has a half-life of 3 minutes. How long will it take 60.0 g of thallium-208 to decay so that 15.0 g of the thallium-208 remains?
3 minutes
6 minutes
9 minutes
12 minutes
- 11. Multiple Choice
A 200-kg rock is at the top of a cliff. What happens to its energy as it begins to fall?
Its kinetic energy is transformed into potential energy.
Its potential energy is transformed into kinetic energy.
Its potential energy increases.
Its kinetic energy decreases.
- 12. Multiple Choice
It takes 6.0 seconds for a pulley system to lift a crate weighing 300. N to a height of 5.0 meters. How much power is required to lift the crate?
360 W
250 W
10. W
0.1 W
- 13. Multiple Choice
What type of bond will form when an element from group 2 (IIA) bonds with an element from group 17 (VIIA)?
hydrogen bond
covalent bond
metallic bond
ionic bond
- 14. Multiple Choice
A 100-gram sample of cerium-143 has a half-life of 33 hours. How long will it take until there are only 6.25 grams of cerium-143 left?
66 hours
99 hours
132 hours
165 hours
- 15. Multiple Choice
Which represents a balanced chemical equation?
CO2 + 2H2O → 2CH4 + 2O2
CH4 + O2 → CO2 + H2O
CH4 + 2O2 → CO2 + 2H2O
CO2 + H2O → CH4 + O2
- Answer choicesTagsAnswer choicesTags