Studying the Universe

Question 1

Law of conservation of energy

Answer 1

energy cannot be created or destroyed

Question 2

Newton’s law of universal gravitiation

Answer 2

gravitational force=gravitational constant x mass ob 1x mass ob 2________(over) distance between objects squared

Question 3

Coloumb’s law of electrical force?

Answer 3

gravitational force = coloumb’s constanct x charge ob 1 x charge ob 2 ____ over _____ distance btw squared

Question 4

Vector and scalar quantities/qualities?

Answer 4

vector measures magnitude and speed; scalar is only magnitude

Question 5

Inverse squared law with examples

Answer 5

force decreases faster than distance increases

Question 6

What is magnetic force?

Answer 6

attraction that arises between electrically charged particles b/c of their motion

Question 7

What is magnetic field?

Answer 7

a region around a magnet with which the force of magnetism acts

Question 8

Newton’s First LAw

Answer 8

Ob in motion stays in motion, object at rest stays at rest, unless acted upon by a net force

Question 9

2nd law

Answer 9

if acted upon by a net force, an object will accelerate

Question 10

3rd law

Answer 10

for every action there is an equal and opposite reaction

Question 11

f=ma

Answer 11

force equals mass times acceleration