Priliminary physics

Electric current may be expressed in which one of the followingunits?

• coulombs/volt

• joules/coulomb

• coulombs/second

• ohms/second

The alloy of steel that is used for making automobile parts such as axle, ball bearing, etc. is

• Nickel steel

• Chromium steel

• Tungsten steel

• Stainless steel

For the hydrogen atom, which series describes electron transitions tothe N=1 orbit, the lowest energy electron orbit? Is it the

• Lyman series

• Balmer series

• Paschen series

• Pfund series

Natural radioactivity was discovered by

• Marie Curie

• Ernest Rutherfor

• Henri Becquerel

• Enrico Ferm

Which one of these space probes was launched by nasa on Aug. 5, 2011 to explore & unlock the secrets of the gaseous giant-jupiter

• Cassini

• Galileo

• Voyager 1

• Juno

Father of atom bomb

• Albert Einstein

• Alfred de Nobel

• Robert J oppenheimer

• Edward teller

A Newton is equal to which of the following?

• kilogram-meter per second

• meter per second squared

• ilogram-meter per second squared

• kilogram per meter-second

Work is equal to which of the following?

• the cross product of force and displacement.

• the product of force times time

• force divided by time

• the dot product of force and displacement

Which of the following scientists is responsible for the law which states that two objects may NOT occupy the same space at the same time

• Heisenberg

• Bohr

• Pauli

• Teller

he constant potential difference across a 2 ohm resistor is 20 volts.How many watts of power are dissipated by this resistor?

• 200 WATTS

• 20WATTS

• 400WATTS

• 40WATTS