What happens to the water pressure when water moves on a downward slope through layers of rock and soil? the water pressure increases the water pressure is unchanged the water pressure decreases the water pressure decreases then increases
Which product is an example of a radiation- emitting device? Cellular phone Stethoscope Microwave oven Silverware
What is a room designed to absorb sound called? anechoic chamber reflection chamber echo chamber absorption chamber
A light ray strikes the surface of water at an angle of 40^circ What is the angle at which it penetrates the water.
Which type of radiation includes particles that can accumulate in specific organs like the thyroid gland and bones? alpha radiation beta radiation positron radiation
True or false, all else being equal, water flows with a higher velocity thorough a semi- circular channel than a wide, shallow channel. True False
Which of the Jovian planets has a ring system (Pick all correct answers)? Uranus Neptune Jupiter Saturn
Who gets credit for discovering Jupiter? Nobody Galileo Adams and Leverrier Tombaugh
What is the maximum duration for a Total Solar Eclipse from a location on the Earth? 7 min. 40 sec. 3 min. 20 sec. over 1 hour 1 min. 30 sec.
Which of the following is correct about Venus (Pick All Correct Answers)? is the hottest major planet in the Solar System has no natural satellites has a thick carbon dioxide atmosphere is about 1/3 the size of Earth
100. A cup of hot chocolate has temperature $80^{\circ }C$ in a room kept at $20^{\circ }C$ After half an hour the hot chocolate cools to $60^{\circ }C$ a. What is the temperature of the chocolate after another half hour? b. When will the chocolate have cooled to $40^{\circ }C$
9. Explain how density differs from volume
The center of gravity of a load: should be kept as high as possible it makes no difference how the vehicle is loaded is only a problem if the vehicle is overloaded can make a vehicle more likely to tip over on curves
Which of the following best defines accuracy in scientific measurement? How precisely instruments are made The speed of taking measurements The number of decimal places in a measurement How closely measurements match the real or accepted value
What is being transferred in a wave? A matter B medium C energy D water
A sound wave with a small amplitude will sound A Loud B Quiet C High Pitched D Low Pitched
Which type of telescope would you need to easily see a potential neutron star? ultraviolet X-ray visible light infrared
9. When the worker uses a pulley system to lift a 40 kg object a vertical distance of 2 m, What type of energy conversion occurs to perform this work, and how is the energy stored once the object is lifted?
What produces waves? A Sound B Heat C Vibrations D Light
A sound wave with a low frequency will sound A Loud B Quiet C High Pitched D Low Pitched
