A. spill over the brim.
B. stay at the same level.
C. be less full that before the ice melted.
D. no way to tell the level.
Which undergoes the greater change in momentum, a golf ball or the head of the golf club when the ball is hit from a golf tee?
A. The ball undergoes the greater change.
B. the head of the golf club undergoes a greater change.
C. Both undergo the same change but in opposite directions.
D. The answer depends on how fast the club is moved.
From a bridge, a ball is thrown straight up at the same time a ball is thrown straight down with the same initial speed. Neglecting air resistance, which ball would have a greater speed when it hits the ground?
A. the ball thrown straight up
B. the ball thrown straight down
C. both balls would have the same speed
D. not enough information to answer
Increasing the rate of heating under a pot of boiling water will
A. increase the temperature of the boiling water.
B. increase the rate of boiling, but not the temperature.
C. increase both the rate of boiling and the temperature of the boiling water.
D. all of the above.
The water in a swimming pool is cooler than the surrounding sidewalk because
A. it has a higher specific heat.
B. it has weaker attractive forces.
C. it loses heat more rapidly
D. it has a lower density.
Melting one gram of ice at 0潞C requires 80.0 calories of energy. To what approximate height would this same amount of energy lift a 1.0 kg block of wood?
A. 34 m
B. 8.2 m
C. 3.4 m
D. 3.4 m
All isolated systems will spontaneously tend toward disorder. This phenomenon is referred to as
A. thermal inefficiency.
B. heat transfer.
C. entropy.
D. thermal conductivity.
Suppose ammonia is spilled in the back of a large room. If there were no air currents, how would the temperature influence how fast you would smell ammonia at the opposite side of the room?
A. Warmer air would cause you to smell the ammonia faster.
B. Cooler air would cause you to smell the ammonia faster.
C. There would be no fumes to smell.
D. The temperature does not affect the timing of when you would smell the ammonia.
Does the Doppler effect occur when the observer is moving and the source of sound is stationary?
A. Yes, the effect is the same.
B. No, the source must be moving.
C. Yes, but the change of pitch effects is reversed in this case.
D. No sound is heard by the observer.
During a track and field meet, the time difference between seeing the smoke from a starter's gun and hearing the bang would be less
A. on a warmer day.
B. on a cooler day.
C. if a more powerful shell is used.
D. if a less powerful shell is used.
The magnetism of a piece of magnetized iron can be weakened by
A. heating it.
B. striking it.
C. dropping it.
D. all of the above.
When a wire is moving parallel to a magnetic field,
A. no current is induced in the wire.
B. maximum current is induced in the wire.
C. the same current is induced as if it were perpendicular to the field.
D. an alternating current is induced.
In which type of circuit would you expect a reduction of the available voltage as more and more resistances are added to the circuit?
A. series circuit.
B. parallel circuit.
C. open circuit.
D. none of the above is correct.
When compared to a ? charge, there are
A. an equal number of field lines pointing inward toward a +4 charge.
B. twice as many field lines pointing inward toward a +4 charge.
C. twice as many field lines pointing outward from a +4 charge.
D. half as many field lines pointing outward from a +4 charge.
Which of the following cannot be explained with a wave theory of light?
A. polarization
B. interference
C. photoelectric effect
D. all of the above
If you are standing in the path of a source of light that is moving toward you, the light you see will look _____ than it would ordinarily.
A. redder
B. bluer
C. brighter
D. darker
The sky appears to be blue when the sun is high in the sky because
A. blue is the color of air, water, and other fluids in large amounts.
B. red light is scattered more than blue.
C. blue light is scattered more than the other colors.
D. none of the above is correct.
Light interacts with matter by which process?
A. absorption
B. reflection
C. transmission
D. all of the above are correct
Transverse mechanical waves can pass through
A. solids.
B. liquids.
C. gases.
D. all of the above.
An airplane pilot hears a slow beat from the two engines of his plane. He increases the speed of the right engine and now hears a slower beat. What should the pilot now do to eliminate the beat?
A. Increase the speed in the left engine
B. decrease the speed of the right engine
C. increase the speed of botHelp with Physics homework! (high school AP)?There's this thing called a textbook...Help with Physics homework! (high school AP)?do you own hw!!
