science 1

Question 1

What is the definition of friction?

Answer 1

friction is the resistance against the movement of an object.

Question 2

what is an unbalanced force

Answer 2

changing an objects motion

Question 3

what is a balanced force

Answer 3

not changing an objects motion

Question 4

what is air resistance

Answer 4

opposite force of gravity

Question 5

what is gravity

Answer 5

non-contact force that pulls, gives an object weight

Question 6

what is magnetism

Answer 6

non contact force

Question 7

what is mass

Answer 7

how much matter is inside you

Question 8

what is weight

Answer 8

measure of gravity on mass

Question 9

what is newtons first law

Answer 9

an object in motion will remain in motion, or an object at rest will remain at rest unless acted upon by an external unbalanced force

Question 10

what is friction

Answer 10

residence against the movement of an object

Question 11

what is the fulcrum

Answer 11

the turning point of a leaver

Question 12

what is the effort

Answer 12

force needed to cause movement

Question 13

what is the load

Answer 13

the resistance to motion that a leaver works against

Question 14

what is a lever

Answer 14

A lever is a simple machine that uses the turning effect of a force to make a task easier.

Question 15

what is a first class lever

Answer 15

Fulcrum lies between the effort and the load

Question 16

what is a second class lever

Answer 16

The load is between the fulcrum and the effort.

Question 17

what is a third class lever

Answer 17

Effort between the fulcrum and the load.