PHYS165 / PHYS 165 Module 6: (Latest Update
) Physics | Questions & Answers |
Grade A | 100% Correct - Portage Learning
Question:
What do we call *motion that is repeated as a function of time*?
Answer:
- Periodic Motion
Question:
Of the following objects in motion, which one is exhibiting simple harmonic motion?
Answer:
- Pendulum swinging back and forth, a mass bouncing on a spring, a metronome
Question:
Periodic motion where the restoring force and acceleration of the object are both directly
proportional to the distance from the equilibrium position
True or False: A scientist wants to make the period of a pendulum *smaller*. One way to
accomplish this would be to *increase* the acceleration due to gravity. - *True*
Shorter Period= increase acceleration
Longer Period= Increase the string length, decrease the acceleration due to gravity by going to
the moon.
1|Page
, True or False: A scientist is experimenting with an object bouncing on a spring. In order to
*decrease* the period of the object bouncing on the spring, the scientist could do either of the
following: *increase* the mass of the object or *decrease* the spring constant of the spring -
*False*
decrease =
increase =increase mass, decrease spring constant
True or False: Electromagnetic waves need a medium to disturb. - *False*
- Electromagnetic waves have the ability to travel through a vacuum. They do not need a
medium in order to exist.
- Sinusoidal transverse waves.
- Electric and magnetic parts have proportional relationship with each other.
- Perpendicular to each other
Question:
Which of the following is a longitudinal wave?
Answer:
- Sound
- vibration (20- 20,000 hertz)
- parallel
- infrasonic = below our range
- ultrasonic = above our range
True or False: According to the Law of Reflection, the angle of incidence is the same size as the
angle of reflection. - *True*
The Law of Reflection states that the angle of incidence is *equal* to the angle of refraction and
that the incident ray, the refracted ray, and the normal all lie in the same plane
Question:
2|Page
) Physics | Questions & Answers |
Grade A | 100% Correct - Portage Learning
Question:
What do we call *motion that is repeated as a function of time*?
Answer:
- Periodic Motion
Question:
Of the following objects in motion, which one is exhibiting simple harmonic motion?
Answer:
- Pendulum swinging back and forth, a mass bouncing on a spring, a metronome
Question:
Periodic motion where the restoring force and acceleration of the object are both directly
proportional to the distance from the equilibrium position
True or False: A scientist wants to make the period of a pendulum *smaller*. One way to
accomplish this would be to *increase* the acceleration due to gravity. - *True*
Shorter Period= increase acceleration
Longer Period= Increase the string length, decrease the acceleration due to gravity by going to
the moon.
1|Page
, True or False: A scientist is experimenting with an object bouncing on a spring. In order to
*decrease* the period of the object bouncing on the spring, the scientist could do either of the
following: *increase* the mass of the object or *decrease* the spring constant of the spring -
*False*
decrease =
increase =increase mass, decrease spring constant
True or False: Electromagnetic waves need a medium to disturb. - *False*
- Electromagnetic waves have the ability to travel through a vacuum. They do not need a
medium in order to exist.
- Sinusoidal transverse waves.
- Electric and magnetic parts have proportional relationship with each other.
- Perpendicular to each other
Question:
Which of the following is a longitudinal wave?
Answer:
- Sound
- vibration (20- 20,000 hertz)
- parallel
- infrasonic = below our range
- ultrasonic = above our range
True or False: According to the Law of Reflection, the angle of incidence is the same size as the
angle of reflection. - *True*
The Law of Reflection states that the angle of incidence is *equal* to the angle of refraction and
that the incident ray, the refracted ray, and the normal all lie in the same plane
Question:
2|Page
