Q-1: The acceleration due to gravity on the moon is 1.6 meters per second squared. If a pendulum is whose length is 6.4 meters is placed on the moon, its period will be:
1) 1.57 secondsQ-2: Of the following, the type of wave that CANNOT be polarized is
2) 3.14 seconds
3) 12.56 seconds
4) 25.12 seconds
ANSWER: 3 -- 12.56 SECONDS
1) electromagneticQ-3: Pressure is equal to:
2) light
3) sound
4) radio
ANSWER: 3 -- SOUND
1) Area divided by forceQ-4: The radiator of a room contains 10 kilogram of water. If the water gives off 50,000 calories of heat to the room, the drop in temperature of the water is:
2) force divided by area
3) area times force
4) area minus force
ANSWER: 2 -- FORCE DIVIDED BY AREA
1) 1 degree CelsiusQ-5: In N-type semiconductors the majority of the carriers are:
2) 2 degrees Celsius
3) 5 degrees Celsius
4) 10 degrees Celsius
ANSWER: 3 -- 5 DEGREES CELSIUS
1) holesQ-6: As a pendulum swings from its highest to its lowest point, it has the SMALLEST acceleration when it is:
2) electrons
3) protons
4) neutrons
ANSWER: 3 -- ELECTRONS
1) at its lowest pointQ-7:Two cars collide head-on. They stop at the point of collision. Both cars must have one of the following. Do they have
2) at its highest point
3) at a point 1/3 the distance from the top of its swing
4) at a point 1/2 the distance from the top of its swing.
ANSWER: 1 -- AT ITS LOWEST POINT
1) equal massesQ-8: When the speed of a train moving on a circular track is doubled, the centripetal force acting on the train does one of the following. Does the force:
2) equal but opposite velocities before the collision
3) equal but opposite momenta before the collision
ANSWER: 3 -- EQUAL BUT OPPOSITE MOMENTA BEFORE THE COLLISION
1) remain the same
2) increase by a factor of 2
3) increase by a factor of 4
4) increase by a factor of 8
ANSWER: 3 -- INCREASE BY A FACTOR OF 4
No comments:
Post a Comment