Exploring Physics Chapters 1-2

Question 1

p = m x v

Answer 1

definition of momentum

Question 2

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

Answer 2

vacuum

Question 3

If f = 0 then a = 0

Answer 3

first law of motion

Question 4

Inertia is a property of matter that resists changing its

Answer 4

velocity

Question 5

To calculate speed, divide distance by

Answer 5

1time

Question 6

Label the four forces acting on an airplane in flight.

Answer 6

Question 7

To study the motion of falling objects, Galileo

Answer 7

rolled them down a ramp

Question 8

To calculate speed, divide distance by

Answer 8

time

Question 9

f = m x a

Answer 9

force equation

Question 10

Physics is the science that explores how energy acts on

Answer 10

matter

Question 11

I = f x t

Answer 11

definition of impulse

Question 12

a = f/m

Answer 12

second law of motion

Question 13

Acceleration is found by dividing the

Answer 13

change in speed by the change in time

Question 14

State the second law of motion

Answer 14

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

Question 15

Momentum is the mass of an object times its

Answer 15

velocity

Question 16

f_ab = -f_ba

Answer 16

third law of motion