Category: Uncategorized

Briefly describe each of Kepler’s Three Laws of Planetary Motion.

To leave the gravitational pull of the Earth, and explore other planets, satellites must have at least:

In Newton’s Law of Gravity, the force of gravity goes up as the:

In Ptolemy’s system the planets orbit the Earth and not the Sun. How did the system explain the retrograde motion of planets like Jupiter?

An eccentric billionaire wants to build a mansion in a location on Earth where the effect of the seasons is the least pronounced — where summer and winter are not that different. Where should his personal astronomer advise him to build?

Transmitter-gated ion channels have a similar structure, with each subunit containing 

Below is a recording of the Vm in a postsynaptic neuron. How would you best describe the region within the brackets (marked with an asterisk(*))? 

Which correctly describes the status of the voltage-gated K+ channel during the falling phase of an action potential?

What receptor can bind benzodiazepines, barbiturates, and ethanol?

Which neurotransmitters are both excitatory?