GMAS 8th Grade Physical Science1

GMAS 8th Grade Physical Science1

Multiple Choice

• an experiment that measures the distances that his toy car travels in many repeated trials

• an experiment that measures the distances that different toy cars travel in many repeated trials

• an experiment that measures the distances that his toy car travels in two trials

Multiple Choice

The work done in raising an object must result in an increase in which type of energy that the object possesses?

• internal energy

• potential energy

• kinetic energy

• heat energy

Multiple Choice

• V

• W

• X

• Z

Multiple Choice

• thermal energy as the boulder is pushed up the hill, and kinetic energy when it rolls back down

• kinetic energy as the boulder is pushed up the hill, and thermal energy when it rolls back down

• chemical potential energy as the boulder is pushed up the hill, and kinetic energy when it rolls back down

• gravitational potential energy as the boulder is pushed up the hill, and kinetic energy when it rolls back down

Multiple Choice

At what time is the kinetic energy the highest?

• 0.0 s

• 0.5 s

• 2.0 s

• 2.5 s

Multiple Choice

• W

• X

• Y

• Z

Multiple Choice

At which time is the ball's potential energy at its maximum?

• 0.0 s

• 0.5 s

• 2.0 s

• 2.5 s

Multiple Choice

What is happening to the ball's energy at a time of 1.5 seconds?

• The ball's kinetic energy is decreasing and its potential energy is decreasing.

• The ball's kinetic energy is increasing and its potential energy is decreasing.

• The ball's kinetic energy is decreasing and its potential energy is increasing.

• The ball's kinetic energy is increasing and its potential energy is increasing.

Multiple Choice

Which kind of wave moves back and forth along the direction of the wave?

• amplitude

• frequency

• longitudinal

• transverse

Multiple Choice

Which of the following describes the motion of water waves?

• rarefied

• compressional

• transverse

• longitudinal

Multiple Choice

Which of the following statements concerning the motion of the particles in a medium is true with regard to transverse and longitudinal waves?

• In both transverse waves and longitudinal waves the particles vibrate parallel to wave velocity.

• In transverse waves the particles vibrate parallel to wave velocity, while in longitudinal waves they vibrate perpendicular to wave velocity.

• In transverse waves and longitudinal waves the particles vibrate perpendicular to wave velocity.

• In transverse waves the particles vibrate perpendicular to wave velocity, while in longitudinal waves they vibrate parallel to wave velocity.

Multiple Choice

A wave travels through a medium. As the wave passes, the particles of the medium vibrate in a direction perpendicular to the direction of the wave's motion. What kind of wave is this?

• magnetic

• longitudinal

• pulse

• transverse

Multiple Choice

What kind of waves are sound waves?

• surface waves

• longitudinal waves

• transverse waves

• parallel waves

Multiple Choice

Which of the following is true for sound waves?

• They require a medium.

• They are unrelated to vibrations

• They cannot travel through liquids.

• They can travel in a vacuum.

Multiple Choice

What property do all types of waves share?

• They transmit energy.

• They have the same frequency.

• They travel through all forms of matter.

• They can travel through a vacuum of empty space.