CH19 Motion, Forces, & Newton's Laws Vocabulary

Question 1

acceleration

Answer 1

to cause to move faster

Question 2

displacement

Answer 2

distance between an object’s initial, or starting, position and its final position

Question 3

distance

Answer 3

total length of an object’s path

Question 4

motion

Answer 4

process of changing position

Question 5

reference point

Answer 5

starting point used to describe the motion or the position of an object

Question 6

satellite

Answer 6

an object in orbit around another object

Question 7

speed

Answer 7

distance an object moves divided by the time it took to move that distance

Question 8

velocity

Answer 8

speed and direction of an object’s motion

Question 9

balanced forces

Answer 9

forces that act on an object, resulting in a net force of 0 N

Question 10

combine

Answer 10

to unite, join together

Question 11

contact force

Answer 11

push or pull on one object by another object that is touching it

Question 12

force

Answer 12

push or pull that one object exerts on another

Question 13

friction

Answer 13

contact force that resists the sliding motion between two objects that are touching

Question 14

gravity

Answer 14

noncontact attractive force that resists the sliding motion between two objects that are touching

Question 15

noncontact force

Answer 15

push or pull on an object without touching it

Question 16

unbalanced forces

Answer 16

forces that act on an object, resulting in a net force that is not 0 N