Quiz about GR8 Science Milestones Review

Question 1

Pepperoni Pizza is an example of

Accepted Answer

a heterogeneous mixture

Answer

a homogeneous mixture

Answer

a pure substance

Answer

a compound

Question 2

This diagram best demonstrates

Accepted Answer

an elemental molecule

Answer

a compound

Answer

a mixture

Answer

an elemental compound

Question 3

Which model demonstrates the Law of Cnnservation of Mass/Matter?

Accepted Answer

Question 4

Which letter informs us of the number of protons?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 5

How many electrons does this element have?

Accepted Answer

16

Answer

0.066

Answer

32

Answer

32.066

Question 6

How many neutrons does Chromium have?

Accepted Answer

28

Answer

24

Answer

52

Answer

76

Question 7

Look at this section of the periodic table. From left to right it shows some of the metals. metalloids and nonmetals. Which 2 elements would likely have the most similar properties?

Accepted Answer

Tin (Sn) and Lead (Pb)

Answer

Nitrogen (N) and Oxygen (O)

Answer

Carbon (C) and Lead (Pb)

Answer

Chlorine (Cl) and Argon (Ar)

Question 8

Which list contains ONLY items that use DC for their power source?

Accepted Answer

Cell phone, Chromebook, Calculator

Answer

TV, Refridgerator, Lamp

Answer

Flashlight, Ceiling fan, Freezer

Question 9

Which form of electrical energy comes to your home from a power plant?

Accepted Answer

AC

Answer

BC

Answer

DC

Answer

EC

Question 10

Why are electromagnets advantageous? (Pick the best TWO answers)

Accepted Answer

They can be turned off and on.

Accepted Answer

They can be made more or less strong.

Answer

They are not very strong.

Answer

They stay on for a long time.

Answer

They use chemicals to attract iron.

Question 11

Which arrow - a, b or c - correctly identifies heat transfer by radiation?

Accepted Answer

a

Answer

b

Answer

c

Question 12

Which arrow - a, b or c - correctly identifies heat transfer by conduction?

Accepted Answer

c

Answer

a

Answer

b

Question 13

A side by side is stuck in the mud. Three boys each push with 300N of Force, but the side by side won't move! How much work did the boys do?

Accepted Answer

0J

Answer

100J

Answer

300J

Answer

900J

Question 14

Which test should they do to help determine the unknown liquids?

Accepted Answer

Measure the Mass of the liquid and divide it by its volume.

Answer

Gently waft to verify that the liquids are odorless.

Answer

Take a very small taste each liquid to see if they are bitter or sour.

Answer

Place a small drop on your skin to see if it is caustic.

Question 15

Which terms correctly identify this lens? (Select ALL correct options)

Accepted Answer

convex

Accepted Answer

convergent

Answer

concave

Answer

divergent

Answer

bifocal

Question 16

What will happen with this type of lens if you are MORE than one focal length away?

Accepted Answer

the object will appear upside down

Answer

the object will disappear

Answer

the object will appear blurry

Answer

the object will remain right side up.

Question 17

A motor cycle slows from 10m/s to 4 m/s in 2 seconds. What is the motorcyle's acceleration?

Accepted Answer

-3 m/s2

Answer

6 m/s2

Answer

3 m/s2

Answer

12 m/s2

Question 18

Which of these scenarios DO NOT demonstrate acceleration?

Accepted Answer

A plane travels 600 mph at 33,000 feet of altitude.

Answer

A car comes to a stop at a stop sign.

Answer

A bus gains speed as it leaves the bus station.

Answer

A bicycle rides on a circular track.

Question 19

A force of 500N is applied to a 1000 kg box. What is the acceleration of the box?

Accepted Answer

0.5 m/s

Answer

2 m/s2

Answer

-2 m/s2

Answer

50,000J

Question 20

You have asked to work outside the open classroom door. While sitting around the opening, you can still hear the teacher talking because the sound waves are

Accepted Answer

diffracting

Answer

absorbing

Answer

refracting

Question 21

When you yell "hello!" into a canyon, you hear a series of replies "hello - hello - hello." We call this an echo, but scientifically it is the _____ of sound.

Accepted Answer

reflection

Answer

refraction

Answer

diffraction

Answer

attraction

Question 22

Students designed a Balloon racer like the one shown here. They hypothesized that the racer would go in the direction opposite the bottle's opening. They thought this because of Newtons ___ law.

Accepted Answer

third

Answer

first

Answer

second

Answer

lost

Question 23

Which terms correctly describe only the properties of SOUND waves? (Select all correct answers)

Accepted Answer

requires a medium

Accepted Answer

travels faster in water than in air

Accepted Answer

are longitudinal waves

Answer

have crests and troughs

Answer

move perpendicular to the direction of energy.

Question 24

Which type of electromagnetic wave is slightly longer than red light waves?

Accepted Answer

infrared waves

Answer

radio waves

Answer

ultra violet waves

Answer

orange light waves

Question 25

Souns was run through n oscilloscope to create a sine wave. Which wave would represent the LOUDEST sound wave?

Accepted Answer

the top wave

Answer

the bottom wave

Answer

they have the same wavelength so they are the same.

Question 26

Souns was run through n oscilloscope to create a sine wave. Which wave would represent the highest pitched sound wave?

Accepted Answer

they have the same wavelength so they are the same.

Answer

the top wave

Answer

the bottom wave

Question 27

A current through a commutator wire and run between magnets makes a

Accepted Answer

simple motor

Answer

simple generator

Answer

simple machine

Question 28

Mrs Rejmer is not sure if the bulb is broken or if the electrical current is flowing through the wires in her barn. Which of the following items would help her know if the wires had a current flowing through them?

Accepted Answer

a compass

Answer

a wire coil

Answer

a battery

Answer

an iron core

Question 29

Looking at this graph, which object is moving fastest at 10 seconds?

Accepted Answer

A

Answer

B

Answer

C

Question 30

Looking at this graph, which object is moving slowest between 20 and 40 seconds?

Accepted Answer

C

Answer

A

Answer

B

Question 31

Looking at this graph, what is the average speed of object B?

Accepted Answer

2.5 m/s

Answer

150 m

Answer

25 m/s

Question 32

Which of the following is are indicators that a chemical change has occurred?

Accepted Answer

When two liquids are poured together, small particle form and fall to the bottom.

Accepted Answer

A white substance and a slear liquid turn blue when stirred together.

Answer

When removed from heat, the substance became a solid.

Answer

When left in the sun, the liquid disappears.

Answer

When placed in a crucible over flames, the solid become a liquid.

GR8 Science Milestones Review

44 questions

Pepperoni Pizza is an example of

This diagram best demonstrates

Which model demonstrates the Law of Cnnservation of Mass/Matter?

Birds sitting on a wire would be like the particle motion of (a) while ants moving through an ant hill would best represent the particle motion of (b)

Most elements on the periodic table are (a) , so most elements on the periodic table are (b) .

Which letter informs us of the number of protons?

How many electrons does this element have?

How many neutrons does Chromium have?

The area of an atom that is the most dense is the (a)

Look at this section of the periodic table. From left to right it shows some of the metals. metalloids and nonmetals. Which 2 elements would likely have the most similar properties?

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GR8 Science Milestones Review

44 questions

Pepperoni Pizza is an example of

This diagram best demonstrates

Which model demonstrates the Law of Cnnservation of Mass/Matter?

Birds sitting on a wire would be like the particle motion of (a) while ants moving through an ant hill would best represent the particle motion of​ (b)

Most elements on the periodic table are ​ (a) , so most elements on the periodic table are​ (b) .

Which letter informs us of the number of protons?

How many electrons does this element have?

How many neutrons does Chromium have?

The area of an atom that is the most dense is the (a)

Look at this section of the periodic table. From left to right it shows some of the metals. metalloids and nonmetals. Which 2 elements would likely have the most similar properties?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

Birds sitting on a wire would be like the particle motion of (a) while ants moving through an ant hill would best represent the particle motion of (b)

Most elements on the periodic table are (a) , so most elements on the periodic table are (b) .