Exploring Physics Chapters 1-3

Question 1

Inertia is a property of matter that resists changing its

Answer 1

velocity

Question 2

Momentum is the mass of an object times its

Answer 2

velocity

Question 3

f_ab = -f_ba

Answer 3

third law of motion

Question 4

Force of gravitational attraction between two objects is directly proportional to the ___ of their masses and inversely proportional to the ___ of the distance separating them.

Answer 4

product, square

Question 5

Physics is the science that explores how energy acts on

Answer 5

matter

Question 6

I = f x t

Answer 6

definition of impulse

Question 7

Label the four forces acting on an airplane in flight.

Answer 7

Question 8

Acceleration is found by dividing the

Answer 8

change in speed by the change in time

Question 9

To study the motion of falling objects, Galileo

Answer 9

rolled them down a ramp

Question 10

a = f/m

Answer 10

second law of motion

Question 11

To calculate speed, divide distance by

Answer 11

time

Question 12

Kepler proved that planets traveled in orbits that were

Answer 12

elliptical

Question 13

State the second law of motion

Answer 13

The acceleration of an object is directly proportional to the force acting on it and inversely proportional to its mass.

Question 14

To calculate speed, divide distance by

Answer 14

1time

Question 15

p = m x v

Answer 15

definition of momentum

Question 16

A feather and lump of lead will fall at the same speed in

Answer 16

vacuum

Question 17

f = m x a

Answer 17

force equation

Question 18

p = m x v

Answer 18

first law of motion