Archive | Physics RSS for this section

Law of Gravitation

[php snippet=1]

Consider the Law of Gravitation where the force of gravity F is:

F = G(m1m2/r2)

Which of the following represents the gravitational constant G in the fundamental dimensions of mass (M), length (L) and time (T)?

Loading ... Loading ...


Subscribe below to receive the MCAT Question of the Day delivered straight to your inbox every morning.




Broadcast Frequency

[php snippet=1]

The length of the most effective transmitting antenna is equal to one-fourth the wavelength of the broadcast wave. If a radio station has an antenna 4 meters long then what is the broadcast frequency of the radio station? (the velocity of light in a vacuum is approx. 3.0 x 108 m/s)

Loading ... Loading ...


Subscribe below to receive the MCAT Question of the Day delivered straight to your inbox every morning.




Increase in Motion

[php snippet=1]

An increase in the motion of molecules of a gas confined in a metal tank will be observed as an increase in:

Loading ... Loading ...


Subscribe below to receive the MCAT Question of the Day delivered straight to your inbox every morning.




Taking A Swim

[php snippet=1]

A block of wood is held half immersed in the water. When released, it submerged to a greater degree but remained afloat. When the block was initially released, which of the following must have been true?

Loading ... Loading ...


Subscribe below to receive the MCAT Question of the Day delivered straight to your inbox every morning.




Odd Man Out

[php snippet=1]

All of the following quantities are vectors EXCEPT one. Which one is the EXCEPTION?

Loading ... Loading ...


Subscribe below to receive the MCAT Question of the Day delivered straight to your inbox every morning.




The Sum of All Forces

[php snippet=1]

If the sum of all the forces acting on a moving object is zero, the object will:

Loading ... Loading ...


Subscribe below to receive the MCAT Question of the Day delivered straight to your inbox every morning.




Electron’s Trajectory

[php snippet=1]

An electron moving at constant velocity enters the area between two charged plates, as shown below. Which of the paths is most consistent with the electron’s trajectory after leaving the area between the charged plates?

Loading ... Loading ...


Subscribe below to receive the MCAT Question of the Day delivered straight to your inbox every morning.




Fly Like An Eagle

[php snippet=1]

The cruising altitude of most planes is about 10,000 meters above sea level where there is less air above the plane pushing down, so the air pressure is lower (about 20 kPa outside compared to about 100 kPa atmospheric pressure at sea level). To keep everyone comfortable inside the plane, the cabin is pressurized to about 75 kPa. The passenger doors on a 747 are about 1 meter wide by 2 meters tall.

If a metric ton is 1000 kg, to pull the door open at 10,000 meters is equivalent to moving how many metric tons? (the acceleration due to gravity can be approximated as 10 m/s2)

Loading ... Loading ...


Subscribe below to receive the MCAT Question of the Day delivered straight to your inbox every morning.




Scale In An Elevator

[php snippet=1]

A person stands on a scale in an elevator (true, it does not happen everyday but it is the sort of insanity that happens on the MCAT!). She notices that the scale is reading lower than her normal weight. Which of the following most reasonably describes the motion of the elevator?

Loading ... Loading ...


Subscribe below to receive the MCAT Question of the Day delivered straight to your inbox every morning.




Increased Incline

[php snippet=1]

A box is stationary on an inclined plane. As the angle of the inclined plane – determined by measuring from the horizontal – increases, the normal force:

Loading ... Loading ...


Subscribe below to receive the MCAT Question of the Day delivered straight to your inbox every morning.