Unit 2 Vocabulary

Question 1

displacement

Answer 1

the distance AND direction of movement by an object from its initial position to its final position

Question 2

subtractive

Answer 2

when an object has two force vectors traveling in OPPOSITE directions, the vectors are …

Question 3

additive

Answer 3

if an object has two force vectors traveling in the SAME direction, the vectors are …

Question 4

applied

Answer 4

put into contact with

Question 5

dyne

Answer 5

an SI unit of force equal to the amount of force required to accelerate a mass of ONE GRAM at a rate of ONE CENTIMETER per second squared. 1/100 000th of a newton.

Question 6

force

Answer 6

a PUSH OR PULL exerted against an object or by an object

Question 7

motion

Answer 7

MOVEMENT of an object that results in displacement due to an unbalanced force

Question 8

scalar

Answer 8

a quantity that has ONLY magnitude

Question 9

vector

Answer 9

quantities that tell us magnitude AND direction

Question 10

unbalanced force

Answer 10

when a force on one side is not counteracted or balanced out by a corresponding force on the other side of the object

Question 11

vector quantities include…

Answer 11

DVAF
D - displacement
V - velocity
A - acceleration
F - force

Question 12

scalar quantities include…

Answer 12

TMDSV
T - time
M - mass
D - distance
S - speed
V - volume

Question 13

force of indirect contact

Answer 13

forces exerted on objects from AFAR such as gravity and magnetism.

Question 14

force of direct contact

Answer 14

forces that are applied DIRECTLY THROUGH CONTACT. there are caused when you push or pull against an object.

Question 14

mass

Answer 14

the AMOUNT of matter in an object; typically measured in g/kg. an object’s ability to resist a force. how much force is required to change the object’s motion.

Question 14

matter

Answer 14

the substance of which everything is made; not pure energy, but has mass and takes up space. anything that has inertia.

Question 15

weight

Answer 15

the amount of an object’s mass times the force of gravity acting upon that mass. the amount of force of attraction being exerted upon an object’s mass by gravity.

Question 16

density

Answer 16

the measure of how much mass OCCUPIES a particular space; d= m/v

Question 17

average

Answer 17

an arithmetic mean, or the symbol thereof

Question 18

instantaneous

Answer 18

existing or pertaining to a particular instant

Question 19

interval

Answer 19

a period of time between events

Question 20

speed

Answer 20

distance traveled in a particular amount of time

Question 21

uniform

Answer 21

identical or consistent

Question 22

velocity

Answer 22

speed that includes direction