S2--11.A review

Question 1

The torque is a pushing effect of the force

Accepted Answer

False

Question 2

When the sun, moon, and Earth align we see neap tides.

Accepted Answer

False

Question 3

Einstein stated that the laws of physics are the same in all frames of reference. This is reflected in the:

Accepted Answer

first postulate of special relativity

Question 4

If there is no support force, you feel weightlessness.

Accepted Answer

True

Question 5

In Einstein’s theory of special relativity, frames of reference must be: ( )

Accepted Answer

uniform

Question 6

In elliptical orbits, the kinetic and potential energy of an object are always equal.

Accepted Answer

False

Question 7

An unsymmetrical and non-uniform object’s CG is located:

Accepted Answer

near the heavy side

Question 8

Why are you more stable when you stand with your feet farther apart on a bumpy bus ride?

Accepted Answer

You have a larger base.

Question 9

What is the strength of the gravitational field a distance 4R from the surface of the Earth?

Accepted Answer

g/25

Question 10

Which part of the torque is perpendicular to the force?

Accepted Answer

lever arm

Questions 10