The pitch of a sound you hear depends on the
sound wave’s
a. Loudness
b. Frequency
c. Intensity
d. Speed
Which of the following shows a balanced equation?
a. SiO2 SiO + O2
b. 2SiO2 2SiO + O2
c. 2SiO2 SiO 2+ O2
d. 2SiO2 SiO + 2O2
An apple appears red because
a. It reflects all color except red
b. It refracts all color except red
c. It absorbs all color except red
d. It absorbs all color
Match the terms with the picture
Refraction Diffraction
Reflected
As a ball rolls across a perfectly level floor some of
the balls kinetic energy is converted to
a. Matter
b. Friction
c. Potential energy
d. Thermal energy
Which of the following is a form of electrical
energy?
a. Sunlight
b. A burning candle
c. A falling apple
d. Lightning
Gravitational force depends on
a. Force
b. Mass and distance
c. Mass and direction
d. Location
PE = mass X height
Using the above formula what is the potential energy of a
rock with a mass of 50kg that rests at the edge of a
cliff 125m high?
a. 2.5 J
b. 50 J
c. 125 J
d. 6,250 J
Which of the following describes the energy transformation
above
a. Electromagnetic to chemical
b. Electromagnetic to thermal
c. Chemical to electromagnetic
d. Chemical to thermal
What form of energy is frequently produced as a result of
friction?
a. Electromagnetic
b. Chemical
c. Potential
d. thermal
Answer Key
Slide one; B/B
Slide two; C
Slide three; D/D
Slide four; B/D
Slide five; A/D