module 11

Question 1

what are the 4 types of forces in creation?

Answer 1

gravitational force
electromagnetic force
weak force
strong nuclear force

Question 2

properties of gravitational force:

Answer 2

it is the weakest force
always an attractive force
when any 2 objects are attracted to each other
causes objects to accelerate towards the earth.

Question 3

properties of electromagnetic force:

Answer 3

force that exists between particles with electrical charge

can be either attractive of repulsive, depending on the charge of the objects involved.

Question 4

properties of weak force:

Answer 4

governs certain radioactive processes in atoms

a different facet of electromagnetic force

Question 5

properties of strong nuclear force:

Answer 5

holds the center of the atom together.
it is the strongest force in Creation
range is small, so it applies only to atoms.

Question 6

Sir Isaac Newton developed an equation which he called the _______Law of __________.

Answer 6

Universal Law of Gravity

Question 7

All Objects with mass are _____________ to each other by __________________________.

Answer 7

attracted , gravitational force

Question 8

The gravitational force between 2 masses is directly __________ to the mass of each object.

Answer 8

proportional

Question 9

The gravitational force between 2 masses is __________ proportional to the _________ of the ______________ between those two objects.

Answer 9

inversely proportional to the square of the distance.

Question 10

What is the force that is always directed perpendicular to the velocity of an object?

Answer 10

centripetal force

Question 11

The acceleration caused by change in direction and not in speed is called ________________________

Answer 11

centripetal acceleration

Question 12

Circular motion requires what force?

Answer 12

centripetal force

Question 13

The larger the centripetal force, the ___________ an object can travel in a circle.

Answer 13

faster

Question 14

The larger the centripetal force, the _________ the circle of motion.

Answer 14

smaller.

Question 15

An object that orbits around a planet is called ___________.

Answer 15

a satellite

Question 16

Name the inner planets.

Answer 16

Mercury, Venus Earth, Mars

Question 17

Name the outer planets

Answer 17

Jupiter, Saturn, Uranus, Neptune, (Pluto)

Question 18

Name the planets in our solar system in order, starting with the one closest to the sun.

Answer 18

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, (Pluto)

Question 19

Name the planets that have rings.

Answer 19

Saturn, Uranus, and Neptune

Question 20

Where are most of the asteroids in the solar system?

Answer 20

in the asteroid belt between Mars and Jupiter.

Question 21

What causes an asteroid to become a meteor?

Answer 21

When an asteroid enters the Earth’s atmosphere.

Question 22

What are the 3 parts of a comet?

Answer 22

the nucleus, the coma, and the tail

Question 23

During what part of a comet’s orbit are all 3 parts present?

Answer 23

when the comet is closest to the sun.

Question 24

Are comet paths elliptical or circular?

Answer 24

elliptical

Question 25

Where do physicists think short-period comets come from?

Answer 25

they believe that short-period comets originate from the Kupier belt.

Question 26

What theory says that gravity is caused by the exchange of particles between objects with mass?

Answer 26

The gravitron theory