Finals review 3

Question 1

The metric force preferred by scientists is

Answer 1

Newtons

Question 2

The rate at which velocity changes is

Answer 2

Acceleration

Question 3

In a direct relationship

Answer 3

As one variable increases, so does the other

Question 4

What simple machine is the most efficient

Answer 4

A bicycle

Question 5

Combination of Methane

Answer 5

CO2 and H2O

Question 6

What would cause the ball to stop moving

Answer 6

Friction stopped it

Question 7

Newton’s first law is also called

Answer 7

The law of Inertia

Question 8

A scatterplot is the best type of graph to use when

Answer 8

One variable causes a second variable to change in value

Question 9

For evidence to be Scientific Evidence it must be

Answer 9

Objectable and Repeatable

Question 10

A lever rotates around a fixed point called

Answer 10

Fulcrum

Question 11

What two parts does a measurement have

Answer 11

Value and Unit

Question 12

Compared to protons, electrons have

Answer 12

Much smaller mass and opposite charge

Question 13

When an atom gains or loses electrons it has an electrical charge is known as

Answer 13

An Ion

Question 14

An object with with constant speed has

Answer 14

A net force equal to zero

Question 15

Natural Frequency is

Answer 15

The frequency at which a system oscillates when it is disturbed

Question 16

A control variable is

Answer 16

A variable that stays the same throughout the whole experiment

Question 17

Net force

Answer 17

A term that means all the forces together on an object

Question 18

The atomic Number is

Answer 18

The number of protons in an atom

Question 19

What does Kinetic energy depend on

Answer 19

Mass and Velocity