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Eclectic
Electric
Joules
Rules
Neat
Heat
Momentous
Newtons
100
Which of these produces most of the compounds responsible for cause acid rain?

A. Nuclear fission
B. Fossil fuels
C. Solar cells
D. Windmills

What is
B. Fossil fuels
100
What is the potential energy of a 3 kg ball moving 2 m/s2?

A. 0 J
B. 5 J
C. 6 J
D. 12 J

What is
A. 0 J
100
How much work is performed when a women pushes a 35 kg stroller 35 m with a force of 20 N?

A. 15 J
B. 35 J
C. 700 J
D. 24500 J

What is
C. 700 J
100
Which of these is the best example of heat transfer by convection?

A. A satellite is warmed by sunlight
B. Butter melts on warm bread
C. A ceiling fan cools a warm room
D. Puddles of water cool a warm time floor

What is
C. A ceiling fan cools a warm room
100
A cyclist moves at a constant speed of 4.5 m/s. If the cyclist does not accelerate during the next 27 seconds, he will travel--

A. 6 m
B. 31.5 m
C. 63 m
D. 121.5 m

What is
D. 121.5 m
200
One economic benefit of using rechargeable batteries instead of disposable batteries is that rechargeable batteries--

A. can be packaged in small containers
B. can be used many times
C. generate their own electricity
D. are cheaper to manufacture

What is
B. can be used many times
200
A 12,000 kg bus traveling 3 m/s collides with a 5 kg pillow traveling 3000 m/s. What is the difference in momentum between the two objects

A. 2 kgm/s
B. 9,000 kgm/s
C. 11,995 kgm/s
D. 21,000 kgm/s

What is
D. 21,000 kgm/s
200
A horizontal force of 600 N is used to push a box 8 m across a room. Which of these variables must be known to determine the power used in moving the box?

A. the weight of the box
B. the potential energy of the box
C. the time it takes to move the box
D. the length of the box

What is
C. the time it takes to move the box
200
A man who was sleeping wakes up because he hears the smoke alarm go off in his house. Before opening the bedroom door, the man feels the door to see whether it is warm. He is assuming that heat would be transferred through the door by--

A. conduction
B. convection
C. radiation
D. compression

What is
A. conduction
200
A ball moving at 20 m/s has a momentum of 200 kgm/s. The mass of the ball is--

A. 1 kg
B. 10 kg
C. 220 kg
D. 4000 kg

What is
B. 10 kg
300
The number of waves passing a point in a specific time period is defined as--

A. frequency
B. wavelength
C. amplitude
D. period

What is
A. frequency
300
A 1.5 V batter is connected to a bulb with resistance 2.0 ohms. What is the current in the circuit?

A. 0.75 amp
B. 1.5 amp
C. 2.0 amp
D. 3.0 amp

What is
A. 0.75 amp
300
A woman lifts a 57-newton weight a distance of 40 centimeters each time she does a particle exercise. It takes her 0.60 second to lift the weight. How much power does she supply for lifting the weight one time?

A. 24 W
B. 34 W
C. 38 W
D. 95 W

What is
C. 38 W
300
Which process best shows the conversion of chemical energy to mechanical energy?

A. Prevailing winds causing windmills to spin, which turn turbines
B. Uranium producing heat to make steam which turn steam turbines
C. Wave motion generating electricity which is stored in batteries
D. Green plants making their own food using the sun

What is
B. Uranium producing heat to make steam which turn steam turbines
300
What is the net force exerted on a 90.0 kg race-car driver while the race car is accelerating from 0 to 44.7 m/s in 4.50 s?

A. 9.8 N
B. 20 N
C. 201 N
D. 894 N

What is
D. 894 N
400
One tuning fork is struck and placed next to an identical form. The two forks do not touch. The second tuning fork starts to vibrate because of--

A. interference
B. the Doppler effect
C. resonance
D. standing waves

What is
C. resonance
400
When a DVD is read, a laser light touches the DVD surfaces and is then measured at the same location it first came from. What allows light to return to its original location after striking the DVD surface?

A. Conduction
B. Refraction
C. Magnification
D. Reflection

What is
D. Reflection
400
What is the efficiency of a space heater if there is a work input of 275 J and a work output of 65 J?

A. 4.4%
B. 24%
C. 100%
D. 423%

What is
B. 24%
400
A solar heater uses energy from the sun to heat water. The heater's panel is painted black to--

A. improve emission of infrared radiation
B. reduce the heat loss by convection currents
C. improve absorption of infrared radiation
D. reduce the heater's conduction properties

What is
C. improve absorption of infrared radiation
400
Mass (kg) Velocity (m/s)
100 3
150 2

The table contains data for two wrecking balls being used to demolish a building. What is the difference in momentum between the two wrecking balls?

A. 300 kgm/s
B. 200 kgm/s
C. 150 kgm/s
D. 0 kgm/s

What is
D. 0 kgm/s
500
Wave Wavelength (m) Frequency (Hz)
1 1 2
2 2 8
3 3 3
4 4 1

Which wave has the greatest velocity

A. wave 1
B. wave 2
C. wave 3
D. wave 4

What is
B. wave 2
500
Why must all chemical reactions be balanced.
What is the Law of Conservation of Mass (or Matter)
500
Toy Car Speed
Trial Time (s)
1 5
2 7
3 4
4 7

The table shows times required for the same toy car to travel 10 m across an identical section of floor after it is pushed. The difference in times was probably cause by differences in --

A. air resistance
B. car mass
C. force exerted
D. surface friction

What is
C. force exerted
500
In winter the air just above the top bunk of a bunk bed is warmer than the air just above the bottom bunk because warm air rises. Which of the following describes the method of heating that cause this difference in temperature?

A. radiation from the room
B. heat transfer through the walls
C. convection currents in the room
D. heat conduction through the bed

What is
C. Convection currents in the room
500
The speed of sound in human tissue is about 1600 m/s. If an ultrasound pulse takes 1.5 x 10-5 s to travel through the tissue, what is the thickness of the tissue?

A. 2.4 km
B. 2.4 cm
C. 0.024 m
D. 24 cm

What is
D. 24 cm