Newtons Laws

Question 0

State Newton’s second law

Answer 0

Mass resists acceleration (INVERSELY PROPORTIONAL) forces cause acceleration (DIRECTLY PROPORTIONAL)

Question 1

Definition of weight

Answer 1

Weight is the amount of force that the earth (ECT) exerts on an object

Question 2

Why do heavier objects hit the ground faster then lighter objects

Answer 2

Because they can push air out if the way faster

Question 3

When to objects collide in the absence of friction momentum is
A. Lost
B. Not lost

Answer 3

Not lost

Question 4

Sliding friction

Answer 4

Occurs when solid surfaces slide over each other

Question 5

Rolling friction

Answer 5

Occurs when and object rolls over another

Question 6

—- never changes but —— is different with gravity differences

Answer 6

Mass. Weight.

Question 7

Which friction requires the most energy to overcome

Answer 7

Sliding friction

Question 8

Definition of mass

Answer 8

How much stuff there is of an object

Question 9

What unit do you use for speed

Answer 9

M/S

Question 10

Static friction

Answer 10

Is the force acting on objects that are not moving. Must be overcome for objects to move

Question 12

What formula do you use to calculate weight

Answer 12

F = ma

Question 13

The first law is also called the law of ——-

Answer 13

Inertia

Question 14

Inertia is directly proportional to

Answer 14

Mass

Question 15

Formula to calculate acceleration

Answer 15

A = f/m

Question 16

Is net force scalar or vector

Answer 16

Vector

Question 17

What causes acceleration

Answer 17

Forces

Question 18

Is momentum a scalar or vector quantity

Answer 18

Vector

Question 19

Formula to calculate momentum

Answer 19

P = mv

Question 20

The higher the velocity and mass the higher the

Answer 20

Momentum

Question 21

What unit do you use for momentum

Answer 21

Kg m/s

Question 22

State Newton’s third law

Answer 22

For every action there is an equal and opposite reaction

Question 23

The ratio of force to mass is

Answer 23

Directly Proportional

Question 24

What unit do you use for acceleration

Answer 24

M/ S 2

Question 25

Fluid/viscous friction

Answer 25

Occurs when objects move through fluid

Question 26

If you fall from a plane your velocity increases and your acceleration

Answer 26

Decreases

Question 28

—– always opposes motion

Answer 28

Inertia

Question 29

A car is moving at a constant velocity. Are the forces balanced or unbalanced

Answer 29

Balanced

Question 30

Definition of momentum

Answer 30

Bashing power

Question 31

What unit do you use for net force

Answer 31

Newtons

Question 32

Lighter objects have —- air resistance

Answer 32

More

Question 33

How much acceleration is there at terminal velocity

Answer 33

None

Question 34

The law of conservation of momentum states

Answer 34

The total momentum of any group of objects remains the same unless acted on by outside objects

Question 35

Air resistance ——– as you fall

Answer 35

Increases

Question 36

Increase mass ——– air resistance

Answer 36

Decrease

Question 37

Define Vector

Answer 37

Magnitude and direction

Question 38

What happens to an object when unbalanced forces act on it

Answer 38

It’s motion changes

Question 39

State Newtons first law

Answer 39

Objects in rest will stay in rest and objects in motion will stay in motion unless acted on my an unbalanced force

Question 40

Define force

Answer 40

A push or pull described by its strength and direction

Question 41

If friction on a plane was greater than the thrust the plane would ——–

Answer 41

Slow down

Question 42

Traveling at constant velocity is using what kind of forces

Answer 42

Balanced

Question 42

At terminal velocity you fall at a ——– speed

Answer 42

Constant