Momchilovich Chapter 2

Question 1

Movement from one place to another

Answer 1

Motion

Question 2

A change in velocity over time

Answer 2

Acceleration

Question 3

Formula for speed

Answer 3

Speed = distance/time

Question 4

The distance moved over time

Answer 4

Speed

Question 5

An object’s speed in a certain direction

Answer 5

Velocity

Question 6

Formula for velocity

Answer 6

Velocity = distance/time add direction

Question 7

Variable that is being observed or that you are measuring

Answer 7

Dependent variable

Question 8

The mass an velocity of an object

Answer 8

Momentum

Question 9

Formula for momentum

Answer 9

P = mass x velocity

Question 10

Formula for acceleration

Answer 10

Acceleration = final velocity - initial velocity / time

Question 11

The variable that you change; stands alone

Answer 11

Independent variable

Question 12

The speed of an object can be measured in

Answer 12

miles per hour or meters per second

Question 13

What is the relationship between time and speed?

Answer 13

The shorter the time, the higher the speed

Question 14

The velocity of a moving object depends on

Answer 14

The object’s speed in a certain direction

Question 15

True or false: Acceleration can be positive or negative.

Answer 15

True

Question 16

What does dominoes falling in a line show?

Answer 16

Momentum being transferred

Question 17

When should you use a line graph?

Answer 17

When you are showing how a variable changes

Question 18

When should you use a bar graph?

Answer 18

When you are comparing two or more things

Question 19

When should you use a pie chart?

Answer 19

When you are displaying survey results or percentages

Question 20

What does momentum depend on?

Answer 20

An object’s mass and velocity

Question 21

What does an object’s momentum do as the object’s speed increases?

Answer 21

Increases

Question 22

What does the Law of Conservation state?

Answer 22

When moving objects collide, they transfer momentum

Question 23

What is frame of reference?

Answer 23

The angle a viewer sees of an object’s motion

Question 24

Give an example of elastic collision.

Answer 24

A car hitting another car and bouncing off

Question 25

Give an example of inelastic collision.

Answer 25

Football player tackling another player

Question 26

What is the symbol for velocity?

Answer 26

v

Question 27

What is the symbol for speed?

Answer 27

s

Question 28

What is the symbol for acceleration?

Answer 28

a

Question 29

What is the symbol for momentum?

Answer 29

p

Question 30

What comes after the word if when you are writing a hypothesis?

Answer 30

the independent variable

Question 31

What comes after the word then when you are writing a hypothesis?

Answer 31

the dependent variable

Question 32

The more mass an object has

Answer 32

The more momentum the object has

Question 33

Displacement

Answer 33

Distance between the starting and finishing point

Question 34

Static friction

Answer 34

Friction between a book and the table top

Question 35

Kinetic friction

Answer 35

Friction between two handing rubbing together

Question 36

Unwanted friction

Answer 36

Eggs sticking to a frying pan

Question 37

Helpful friction

Answer 37

Tires rubbing on the road

Question 38

Centripetal friction

Answer 38

A Ferris wheel

Question 39

Negative acceleration

Answer 39

A car slowing down

Question 40

Balanced force

Answer 40

Two people pushing and neither one moves

Question 41

Unbalanced force

Answer 41

Two people pushing and one gets moved back