Quiz about Science Milestones

Question 1

An element is?

Accepted Answer

Pure substances that cannot be broken down into simpler substances

Answer

Chemically combined

Answer

Pure substances that can be broken down

Answer

One or more elements chemically combined.

Question 2

Which picture(s) represents a mixture between two elements?

Accepted Answer

A and C

Answer

A

Answer

B

Answer

C

Question 3

When water sits in the freezer and freezes into ice, it is because the water has...

Accepted Answer

lost energy

Answer

gained mass

Answer

gained energy

Answer

lost mass

Question 4

At higher temperatures

Accepted Answer

particles in an object move faster

Answer

particles in an object have less energy

Answer

a gas contracts

Answer

the motion of particles does not change

Question 5

What is a chemical property of paper?

Accepted Answer

Flammable

Answer

White

Answer

Light

Answer

Density

Question 6

A student mixes yellow powder with water. Which observation would prove a CHEMICAL change occurred?

Accepted Answer

The bag's TEMPERATURE changed

Answer

The powder DISSOLVED in the water

Answer

The water turned the COLOR yellow

Answer

The STATE OF MATTER changed

Question 7

What is the mass number of this atom?

Accepted Answer

7

Answer

1

Answer

3

Answer

4

Question 8

Which of the models best represents CaCO₃?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 9

Why is the following chemical equation not balanced?
H_{2 +}O₂--> H₂O

Accepted Answer

each side of the equation has a different number of oxygen atoms

Answer

each side of the equation has a different number of hydrogen atoms

Answer

each side has the same mass

Answer

the equation is actually balanced

Question 10

Which passenger has the most potential energy?

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 11

When a pendulum swings, at which point is kinetic energy highest?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 12

1. Using the image identify the three forms of heat transfer.

Conduction (CD), Convection (CV) Radiation (R).

Accepted Answer

A: CV - B: CD - C: R

Answer

A: CD - B: CV - C: R

Answer

A: R - B: CD - C: CV

Answer

A: R - B: CV - C: CD

Question 13

What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?

Accepted Answer

chemical energy to mechanical energy

Answer

mechanical energy to chemical energy

Answer

thermal energy to mechanical energy

Answer

mechanical energy to thermal energy

Question 14

This is a velocity-time graph. What is the object doing in segment A?

Accepted Answer

Speeding up

Answer

Slowing down

Answer

Constant Velocity

Answer

Not moving

Question 15

What is the line on this graph showing?

Accepted Answer

moving away from starting point at a constant speed

Answer

moving back towards the starting point at a constant speed

Answer

acceleration (getting faster)

Answer

deceleration (getting slower)

Question 16

What Newtons law does this picture represent

Accepted Answer

Newtons 1st law

Answer

Newtons 2nd law

Answer

Law of gravity

Answer

Newtons 5th law

Question 17

How do you find the net force of this image.

Accepted Answer

Add the green arrows and subtract the orange arrow.

Answer

Add up all the arrows

Answer

Add a green arrow and the orange arrow.

Answer

Subtract all the arrows.

Question 18

A skateboard rolls down a hill, reaches the level surface and eventually comes to a stop. The fact that the skateboard ultimately stops is best explained by ____.

Accepted Answer

the presence of an unbalanced force (e.g., friction) can cause a moving object to stop

Answer

an unbalanced force would be required to keep the sled moving forward at constant speed

Answer

the presence of inertia causes it to stop

Answer

the natural tendency of any object is to ultimately stop

Question 19

A student asks a series of questions about a wave. The answer to which question will allow the student to determine whether the wave is electromagnetic or mechanical?

Accepted Answer

Does it require a medium in order to travel?

Answer

Can it pass through air and water?

Answer

Does it have a measurable speed?

Answer

Does it have a measurable frequency?

Question 20

How do electromagnetic and mechanical waves compare?

Accepted Answer

Mechanical waves can only travel through a solid, liquid, or gas, but electromagnetic waves can travel through a vacuum.

Answer

Mechanical waves can only travel through a vacuum, but electromagnetic waves can travel through a solid, liquid, or gas.

Answer

Mechanical waves can travel through a solid, liquid, or gas, but electromagnetic waves can only travel through a gas.

Answer

Mechanical waves can travel through a solid, liquid, or gas, but electromagnetic waves can only travel through a solid.

Question 21

Select the correct order of waves on the EMS

Accepted Answer

Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma

Answer

Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio

Answer

Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio

Answer

Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma

Question 22

Which has the LONGEST wavelength and, therefore, the lowest frequency/energy

Accepted Answer

Radio Waves

Answer

Gamma Rays

Answer

Visible Light

Answer

Infrared rays

Question 23

What type of EM radiation is used in military night vision goggles?

Accepted Answer

infrared

Answer

radio wave

Answer

microwave

Answer

light

Question 24

Which of the following electromagnetic waves is used to check baggage in airports as part of security measures?

Accepted Answer

x-rays

Answer

gamma rays

Answer

microwaves

Answer

radio waves

Question 25

The higher the pitch, the _____ the wavelength and the ____ the frequency.

Accepted Answer

shorter, higher

Answer

shorter, lower

Answer

longer, higher

Answer

longer, lower

Question 26

The speed of a sound wave depends on

Accepted Answer

both air temperature and medium

Answer

the frequency

Answer

the medium

Answer

the air temperature

Question 27

Which of the following represents refraction?

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 28

When a sound wave experiences reflection, we hear

Accepted Answer

an echo

Answer

a louder sound

Answer

a quieter sound

Answer

nothing

Question 29

Light waves and sound waves are similar in that...

Accepted Answer

They both transmit energy

Answer

They are both longitudinal waves

Answer

They are both transverse waves

Answer

They both can travel through space.

Question 30

How does a concave lens differ from a convex lens?

Accepted Answer

A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges

Answer

A convex lens is another way to describe a plane mirror; a concave lens is curved

Answer

A concave lens is curved inward on both sides; a convex lens is on only one side

Answer

A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges

Question 31

As the magnets get farther apart, the strength of the fields get.....

Accepted Answer

Weaker

Answer

Stronger

Answer

Stay the same

Answer

Repel

Question 32

In what condition the magnetic poles attract each other?

Accepted Answer

North-South

Answer

South-South

Answer

North-North

Answer

All of the above

Question 33

What does the strength of gravity between two objects depend upon?

Accepted Answer

Mass & distance

Answer

Mass & weight

Answer

Gravity & inertia

Answer

Inertia & mass

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