Archives: Quiz

Phil leans over the edge of a cliff and throws a rock upward at 5 m/s. How far below the level from which it was thrown is the rock 2 seconds later? A) 5 m B) 10 m C) 15 […]

Which of the following is a property of light waves and NOT of sound waves? A) frequency B) wavelength C) amplitude D) polarization E) none of the above There is a greater proportion of carbon-14 in A) new bones. B) […]

Nellie tosses a ball upward at an angle. Neglecting air resistance, the horizontal component of the initial velocity A) decreases with time. B) remains constant. C) increases with time. The frequency of the second hand on a clock is A) […]

Sound waves can interfere with one another so that no sound results. A) True B) False C) Either, depending on the air temperature. A weightless spring is stretched 10 cm by a suspended 1-kg block. If two such springs are […]

For lunar tides to occur in the human body A) most of the body would have to be in the liquid state. B) Earth’s gravitation would have to be incredibly small. C) parts of the body would have to be […]

For an isotope with a half-life of one day, at the end of three days the amount that remains is A) none. B) one-half. C) one-quarter. D) one-eighth. E) none of the above If the volume of an object were […]

When an ice cube in a glass of water melts, the water level A) rises. B) falls. C) remains the same. When light passes through common windowpane, its angle of emergence is A) usually less than its angle of incidence. […]

As a high-altitude balloon rises higher into the atmosphere, it undergoes a decrease in A) volume. B) density. C) weight. D) mass. E) none of the above Superconductors are noted for their A) high electric resistance. B) low electric resistance. […]

The temperature of outer space is A) zero. B) about 2.7 kelvin. C) meaningless. D) none of the above The net force acting on an insect falling downward at constant velocity is A) zero. B) the weight of the insect. […]

When a geyser erupts, pressure at its bottom A) increases. B) decreases. C) is unaffected D) all of the above E) none of the above Electric forces within an atomic nucleus tend to A) hold it together. B) push it […]

An apple falls from a tree and hits the ground 5 meters below with a speed of about A) 5 m/s. B) 10 m/s. C) 15 m/s. D) 20 m/s. E) not enough information The secondary rainbow is dimmer than […]

An asteroid exerts a 360-N gravitational force on a nearby spacecraft. The 360-N force on the spacecraft is directed A) toward the asteroid. B) away from the asteroid. C) toward the Sun. A jet traveling at 1500 km/h passes overhead. […]

If an elephant grows proportionally to twice its height, its weight would be multiplied by about A) 2. B) 4. C) 6. D) 8. E) none of the above Due to inertia, perhaps a railroad train in motion should continue […]

When 10 grams of hot water cool by 1oC, the amount of heat given off is A) 41.9 calories. B) 41.9 Calories. C) 41.9 joules. D) more than 41.9 joules. E) none of the above Particle A has twice the […]

When Eddie Electron experiences an electrical shock, the source of electrons composing the shock is A) the ground beneath Eddie’s feet. B) Eddie’s body. C) the power plant. D) whatever electric device being handled. E) electric field in the air. […]

Surface tension of liquids A) increases when wetting agents are added. B) decreases as the liquid temperature increases. C) is about the same for all liquids. D) results from a thin molecular membrane beneath the liquid surface. E) keeps steel […]

Double the frequency of musical note and you double its A) wavelength. B) speed. C) amplitude. D) all of the above E) none of the above Two tuning forks produce sounds of wavelengths 3.4 meters and 3.3 meters. Approximately what […]

Refraction causes the bottom of a swimming pool to appear A) farther down than it actually is. B) closer to the surface than it actually is. C) neither of these A profound message from all of science is that we […]

Ice crystals in nearly frozen liquid water make up a A) microscopic slush. B) region of lower density. C) both of these D) neither of these The air that you breathe doesn’t emit visible light indicates that most of the […]

An aircraft that flies faster than the speed of sound is said to be A) subsonic. B) supersonic. C) impossible. D) none of the above Spots of sunlight on the ground cast through openings between leaves in trees above are […]

When water is turned on in a shower, the shower curtain moves towards the water spray. This partly involves A) capillary action. B) surface tension. C) pressure changes in moving fluids. D) none of the above Interference is a property […]

The best visible safety light in the darkroom that will emit low-energy photons is A) violet. B) blue. C) green. D) any of the above E) none of the above What is the threshold of hearing? A) 0.1 decibel B) […]

Two equal-size vectors at right angles to each other have a resultant that is A) equal to that of either vector. B) √2 the length of either vector. C) twice the length of either vector. The synthesis of a large […]

When bullets are fired from an airplane in the forward direction, the momentum of the airplane is A) decreased. B) unchanged. C) increased. When an elevator is accelerating upward, the frequency of a pendulum inside A) increases. B) decreases. C) […]

An object that completes 10 vibrations in 20 seconds has a frequency of A) 0.5 hertz. B) 2 hertz. C) 200 hertz. Flatten a spherical meatball into a hamburger and you increase its A) surface area. B) volume. C) both […]

While you are standing in the aisle of a bus, the driver suddenly makes a left turn. You lurch to the right due to A) an unbalanced force. B) your tendency to keep moving forward. C) an equilibrium challenge. In […]

Whenever the net force on an object is zero, its acceleration A) may be less than zero. B) is zero. C) may be more than zero. Diffuse reflection occurs when the size of surface irregularities is A) small compared to […]

Neon signs require about 12,000 volts to operate. If the circuit uses a 120-volt power source, the ratio of primary to secondary turns on the transformer should be A) 1 primary to 100 secondary. B) 100 primary to 1 secondary. […]

In the formation of a cloud, moist air rises and A) expands. B) cools. C) condenses. D) all of the above E) none of the above Answer: Two life preservers have identical volumes, one filled with Styrofoam and the other […]

The mass of an atomic nucleon is nearly A) twice that of an electron. B) four times that of an electron. C) a thousand times that of an electron. D) two thousand times that of an electron. Answer: A rock […]

A device that shows the bending of particle trails in liquid hydrogen is a A) streamer chamber. B) spark chamber. C) bubble chamber. D) all of the above E) none of the above Answer: In the Doppler effect it is […]

Into which stable force field can a proton be placed at rest without being acted upon by a force? A) magnetic field B) electric field C) both of these D) neither of these Answer: The lower the temperature of an […]

The half-life of a radioactive substance is affected by A) pressure. B) temperature. C) age. D) all of the above E) none of the above Answer: A dolphin perceives greater detail by emitting sounds of A) lower frequency. B) higher […]

According to the well-known equation E = mc2, A) mass and energy travel at the speed of light squared. B) energy is actually mass traveling at the speed of light squared. C) mass and energy travel at twice the speed […]

Science later greatly advanced when Galileo favored A) philosophical discussions over experiment. B) experiment over philosophical discussions. C) nonmathematical thinking. D) none of the above Answer: The average speed of light is greatest in A) red glass. B) orange glass. […]

The superposition of identical waves affects A) amplitude. B) wavelength. C) speed. D) all of the above E) none of the above Answer: Which of these is correct? A) a piece of solid iron floats in molten iron. B) a […]

Rockets that launch satellites into orbit need less thrust when fired from A) Cape Canaveral in Florida. B) Edwards Air Force Base in California. C) Hawaii. D) location does not affect the required rocket thrust. Answer: The source of electrons […]

An electric heater is rated 300W 110V. The safety fuse in the circuit can withstand 15 A of current. How many heaters can be safely operated in the circuit? A) 2 B) 3 C) 4 D) 5 E) more than […]

The conversion of mass to energy of other forms via nuclear fission is A) less than 1%. B) about 10%. C) about 20%. D) about 30%. E) more than 30%. Answer: A block of Styrofoam floats on water while a […]

In our part of the universe, antimatter is A) non-existent. B) plentiful. C) short-lived. D) long-lived. Answer: Harry pulls on the end of a spring attached to a wall. The reaction to Harry’s pull on the spring is A) the […]

If each dimension of a steel bridge is scaled up ten times, its strength will be multiplied by about A) ten and its weight by ten also. B) one hundred, and its weight by one thousand. C) one thousand, and […]

The force responsible for a car moving steadily along a no-friction icy banked curve is due to A) centrifugal effects. B) the normal force at right angles to the curved surface. C) the radial component of the normal force. D) […]

A light woman and a heavy man jump from an airplane at the same time and open their same-size parachutes at the same time. Which person will get to the ground first? A) The light woman B) The heavy man […]

Two light bulbs are connected to a battery, one at a time. The bulb that draws more current has the A) lower resistance, and is brightest. B) lower resistance, but is dimmer. C) higher resistance, and is brightest. D) higher […]

To reduce the danger of self-induction A) simply pull the circuit plug. B) turn off the switch to the circuit. C) either of these D) neither of these Answer: Which of the following are electrically neutral? A) protons B) neutrons […]

Radiation dosages based on potential damage is in A) rads. B) rems. C) joules. D) none of the above Answer: It would be easier to pull the evacuated Magdeburg hemispheres apart if they were A) held upside down. B) at […]

A motorcycle moving at 50 km/h skids 10 m with locked brakes. How far will it skid with locked brakes when traveling at 150 km/h? A) 10 m B) 30 m C) 50 m D) 90 m Answer: The equilibrium […]

If a satellite’s radial velocity is zero at all times, its orbit must be A) parabolic. B) elliptical. C) circular. D) geosynchronous. Answer: When an object absorbs as much as it radiates A) it remains at about the same temperature. […]

If a magnet produces a force on a current-carrying wire, the wire A) produces a force on the magnet. B) may or may not produce a force on the magnet. C) none of these Answer: The laser light that can […]

A main difference between gravitational and electric forces is that electrical forces A) attract. B) repel or attract. C) obey the inverse-square law. D) act over shorter distances. E) are weaker. Answer: Reflected light from the Moon in a lake […]