Newton Unit

Question 1

tool needed for weight

Answer 1

scale

Question 2

tool needed for mass

Answer 2

balance

Question 3

your___ doesn’t change

Answer 3

mass

Question 4

what is a force

Answer 4

any push or pull

Question 5

when is the net force acting on an object greater than 0

Answer 5

when there are unbalanced forces acting on the object

Question 6

friction is

Answer 6

a force which opposes motion

Question 7

speed object is moving formula

Answer 7

9.8 m/s/s x # of secs falling

Question 8

the more mass…

Answer 8

the greater the attraction

Question 9

the closer objects are to each other..

Answer 9

the greater the attraction due to gravity

Question 10

net force needed to keep an object at rest

Answer 10

net force = 0 newtons

Question 11

net force needed to keep an object at a constant velocity

Answer 11

net force = 0 newtons

Question 12

objects with more inertia

Answer 12

have less of a tendency to start moving

Question 13

acceleration is affected by

Answer 13

mass & force acting on the object

Question 14

why do objects accelerate

Answer 14

net force > 0 newtons

Question 15

1st law

Answer 15

an object in motion stays in motion, an object at rest stays at rest

Question 16

unbalanced forces cause an object to

Answer 16

accelerate

Question 17

balanced forces cause

Answer 17

no change in motion (constant velocity)

Question 18

gravity is

Answer 18

a force of attraction between 2 objects

Question 19

the amount of gravity between 2 objects depend on

Answer 19

1. distance between objects (closer the stronger)

2. the mass (more mass, stronger force)

Question 20

fall with an acceleration due to gravity of

Answer 20

9.8 m/s/s

Question 21

weight is

Answer 21

a force of gravity acting on an object

Question 22

weight varies

Answer 22

depending on the amount of gravity pulling it down

Question 23

weight is a type of

Answer 23

force

Question 24

Gravity is a type of

Answer 24

acceleration

Question 25

inertia

Answer 25

the resistance an object has to change in motion

Question 26

the more inertia an object has...

Answer 26

the harder it is to change its motion

Question 27

inertia is depended on

Answer 27

the mass of the object

Question 28

higher the mass of an object, the higher the

Answer 28

inertia

Question 29

objects with lots of inertia

Answer 29

are harder to start moving, and once moving harder to stop

Question 30

2nd law

Answer 30

if a force acts on a body of mass, the body accelerates in the direction of the force

Question 31

acceleration requires a

Answer 31

net force greater than 0

Question 32

force vectors

Answer 32

to show a push or pull on an object, length of arrow shows strength ALWAYS LABEL

Question 33

speed arrows

Answer 33

length tells us speed, it shows the direction of speed

Question 34

3rd law

Answer 34

when an object exerts a force on a 2nd object, the 2nd object exerts an equal and opposite force on the first object

Question 35

for every action there is

Answer 35

an equal and opposite reaction

Question 36

forces come in

Answer 36

pairs & have an equal and opposite force

Question 37

calculating weight unit

Answer 37

N

Question 38

force =

Answer 38

mass x acceleration

Question 39

acceleration =

Answer 39

force / mass

Question 40

weight =

Answer 40

mass x acceleration due to gravity

Question 41

force unit

Answer 41

N

Question 42

acceleration unit

Answer 42

m/s/s