Assignment:
1. The divisions of physical science include all EXCEPT __________.
- Physics
- Social Science
- Geology
- Astronomy
2. Which of the following is an example of sound science?
- Peer-Reviewed Studies
- Astrology
- Political Agendas
- Superstition
3. Motion is described using what fundamental units?
- Speed and Velocity
- Height and Rate of Fall
- Space and Area
- Length and Time
4. Acceleration may result from ______________.
- a change in speed
- a change in direction
- a change in speed and direction
- all of the above.
5. When an object is said to be in freefall, this is said to be influenced by ____________.
6. Force always produces motion
7. An object will remain at rest or in uniform motion unless acted upon by ___________.
- an external force
- an internal force
- light
- heat
8. Given an object that weighs 10 kilograms and is traveling at 5 feet per second, what is the force of this object?
- 5 kg/ft
- 15 kg/ft
- 50 kg/ft
- 500 kg/ft
9. One small, light object and one heavy, large object are both traveling at the same speed; therefore, they have the same momentum.
10. Force produces __________ motion and torque produces ____________ motion.
- constant; accelerated
- decreased; angular
- linear; rotational
- none of the above
11. Doubling your speed increases your braking distance by _____________.
12. An example of potential energy is _______________.
- water sitting behind a dam
- a roller coaster in full motion
- swinging a hammer
- all of the above
13. Energy cannot be created nor destroyed.
14. Work and energy are measured in _________, while power is measured in ________________.
- watts; horsepower
- joules; horsepower
- newtons; watts
- joules; watts
15. Fossil fuels and geothermal energy are both nonrenewable energy sources.
16. Which of the following possess electrical charges?
- Protons and Electrons
- Protons and Neutrons
- Neutrons and Electrons
- Electrons only
17. A good example of a conductor is ____________.
- wood
- plastic
- silicon
- metal
18. When the wave propagation is perpendicular to the particle displacements, this is called a ____________ wave.
- latitudinal
- longitudinal
- transverse
- particle
19. Which of the following has the highest sound intensity?
- City Traffic
- Subway Train
- Riveting Machine
- Average Factory
20. When a star "twinkles" this is often a result of _______________.
- humidity
- refraction
- air
- reflection
21. When waves reinforce one another, they ________________.
- cancel each other
- increase the amplitude
- interfere with each other
- collapse
22. The major source of helium today is from ____________.
- oxygen
- natural gas
- carbon dioxide
- nitrogen
23. When heating food, microwaves penetrate only a few centimeters before being completely absorbed.
24. Waves associated with moving particles are called _____________.
- motion waves
- velocity waves
- matter waves
- moving waves
25. The process where an excited atom is struck by a photon and emits additional photons is ____________.
- Heisenberg's Uncertainty Principle
- Theory of Motion
- Excited States
- Photoelectric Effect