5. When a car's speed is doubled, it's kinetic energy is
A. four times as large
C. tripled
B. half as large
D. twice as large
6. Why are open field concerts or shows conducted during nighttime?
A At nighttime, it is more quiet and calm.
B. At nighttime, ground is cooler than the air above it
C. At nighttime, ground is warmer than the air above it.
D. At nighttime, people are not busy.
7. Which of the following orders of visible light color shows increasing wavelength?
A red, orange, yellow, green, blue, indigo, violet
B. red, yellow, orange, violet, indigo, blue, green
C. violet, indigo, blue, green, yellow, orange, red
D. violet, red, indigo, blue, yellow, green, orange
8. Heat is an energy in transit and it is not contained in an object. How does heat moves?
A. Heat moves from higher temperature to highest temperature.
B. Heat moves from higher temperature to lower temperature.
C. Heat moves from lower temperature to lowest temperature.
D. Heat moves from lower temperature to higher temperature.​