Matter and Energy MCQs
Matter and Energy MCQs
These Matter and Energy multiple-choice questions and their answers will help you strengthen your grip on the subject of Matter and Energy. You can prepare for an upcoming exam or job interview with these Matter and Energy MCQs.
So scroll down and start answering.
1: The kinetic energy of a 23.2-g object moving at a speed of 81.9 km/hr is __________ kcal.
A. 1900
B. 77.8
C. 145
D. 1.43 x 10-3
E. 6.00
2: When you burn a log in your fireplace you are converting ________.
A. Chemical to thermal (heat) energy
B. Thermal to electromagnetic energy
C. Electromagnetic to chemical
D. Chemical to nuclear energy
3: Particle accelerators make it possible for scientists to study _____.
A. Gravity
B. Electricity
C. Quarks
D. All of the above
4: Infrared radiation has a longer wavelength, ____ frequency, and ____ energy than visible light.
A. Lower, lower
B. Higher, lower
C. Lower, higher
D. Higher, higher
5: When a radioactive isotope decays by electron capture, the electron ________.
A. Combines with a proton in the nucleus
B. Combines with neutronin the nucleus
C. Combines with a proton outside the nucleus
D. Ombines with a neutron outside the nucleus
6: Small objects denser than water can float on its surface because water has high _____.
A. Cohesion
B. Adhesion
C. Surface tension
7: The total energy in a molecule, its enthalpy, is given by the letter ____.
A. S
B. G
C. H
D. T
8: Kinetic energy is energy in motion. potential energy is _____ energy.
A. Stored
B. Temperature
C. More complex
D. Louder
9: Average body temperature is ________ degrees centigrade.
A. 35
B. 37
C. 40
D. 42
10: If quantity x is conserved for a certain system and during a certain process, that means__________.
A. Quantity X for that system does not change in any way during that process
B. Electron transitions within the molecule
C. Changes in molecular rotation
D. Changes in molecular vibration
11: Velocity differs from speed in that velocity indicates a particle's __________ of motion
A. Direction
B. Vector
C. Magnitude
12: ________ have the highest velocities.
A. Primary waves
B. Secondary waves
C. Surface waves
D. Refracted S wave
13: Moving through trophic levels _______.
A. Effectively conserve and retain water
B. More producers than consumers
C. Photosynthesis
D. Protozoa
14: The emission of light has most to do with the behavior of _________.
A. Electrons
B. Neutron
C. Proton
D. None of these
15: The energy of 3600 cal is equal to ________ kj. | Hint; 1cal = 4.184 J kJ
A. 15
B. 0.86
C. 3.6
D. 4.184
E. 15000
16: The source of most of the energy we use today is _____.
A. Fossil fuels
B. Geothermal
C. Nuclear
D. Biomass
17: _________________ is the movement of an object or a change in its physical structure.
A. Work
B. Hydrolysis reaction
C. Double covalent bond
D. Bases
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Matter and Energy MCQs
