Extra Physics Questions Flashcards
An object’s velocity is how fast it is moving and
which direction it is moving in
the average speed is ____ the average velocity
the absolute value of
a series of images showing the position of a moving object over equal time intervals is a:
motion diagram
According to Kepler’s second law of planetary motion,
the speed of a planet changes when it gets closer to the Sun
Which law states that objects with mass have an attractive force between them?
newtons law of universal gravitation
Where is the velocity of an orbiting planet the greatest?
closest to the sun
Which scientist developed an experiment to measure G, using lead spheres and a very thin wire?
Henry Cavendish
The London bridge crosses what river?
Thames
Railroads put an end to what type of bridge?
steel
Which bridge is found in Chicago?
DuSable Bridge
Which of the forces involves a twisting force?
torsion
Which force is a pulling force?
tension
Which force is a pushing force?
compression
This part of a bridge is tied to the Earth on both sides?
Abutment
Which bridge is the simplest to build?
Beam bridges
