26 Answered Questions for the topic Science Grade 8

Science Grade 8

08/19/18

A 75 kg child clombs a 6.00 m long slide that is inclined at 30° with the horizontal. What is the potential energy of the child with respect to the ground?

Use one of the formulas for solving Potential Energy
Science Grade 8

08/17/18

jon walks for a few minutes then runs for a few minutes during this time his average speed is

This is for my science if i don't do it write i will fail
Science Grade 8

06/07/18

The greater/higher the amplitude of a transverse wave, the less energy the wave has. *

it is about transverse waves
Science Grade 8

06/04/18

Can Plates can carry continents or parts of the ocean floor but not both

I’m curious about tectonic plates 
Science Grade 8

05/02/18

Calculate the density of a diamond that has a volume of 0.50 cubic centimetres and a mass of 1.75 g?

i couldnt wrap my head around the reading and now im struggling!

04/07/18

Would a 100 mL graduated cylinder hold 120 g of ethyl alcohol(D+0.79 g/mL)?

D= Mass/Volume(D=M/V)
Science Grade 8

04/05/18

How much heat is required to melt 5 grams of ice at 0 degrees Celsius to liquid water at 0 degrees Celsius

I do not understand heat calculations I understand how to do it if there are different temperatures but how do I do it if they are different states of matter at the same temperature I have tried... more
Science Grade 8

03/23/18

if only olympic gold medalist Michael Philps can go 100 meters in 46 seconds then what woould be close to his average speed

motion assessment muddy to clear
Science Grade 8

03/23/18

If the distance between two objects is increased, the gravitational force will _____.

my choices are please help A.decreaseB.decrease by the distance squaredC.increaseD.increase by the distance squared
Science Grade 8

03/15/18

What are the forces

A helicopter accelerting downward. Diagram all the forces acting on the helicopter 
Science Grade 8

03/14/18

What properties of neutrinos make them especially difficult to study?

Atomic Structure and Chemical Bonds
Science Grade 8

03/10/18

what occurs when an object travels in a circular path

it deals with acceleration
Science Grade 8

02/19/18

where is CARD15 located in your body. CARD15 is a chromosome

for  a project
Science Grade 8 Science

02/15/18

Most foot races are measured in meters?

It’s for science class and I’m not sure what the correct answer in the context it’s listed in. Also it’s a science term    
Science Grade 8 8th Grade Science

02/15/18

the force that makes an apple fall to the ground is the same force that keeps earth orbiting the sun

is the force that makes an apple fall to the ground is the same force that keeps orbiting the sun. true or false  
Science Grade 8

02/12/18

The negative ions in two compounds switch places in a double-replacement reaction.

 science question about ions
Science Grade 8

01/25/18

Which has more thermal energy? 10 g of ice or 10 g of water? Explain.

I cant find a simple answer on google  
Science Grade 8

01/21/18

Newton’s second law of motion describes the relationship between force and motion.

 This is a question i am getting asked in chapter 2 lesson 2 in science 
Science Grade 8

01/11/18

How much force would the orange man need to use for the 200-­‐kg fridge to accelerate at 5 m/s2?

I need help
Science Grade 8

01/09/18

the magnetic mineral iron oxide is called

Science Grade 8

01/06/18

how are biochemicals made and why are they so important?

I have to answer and do research on this question for a science project and I am unable to find any information on the topic. 
Science Grade 8

01/04/18

why is electron configuration so important in science

so theelectron configuration in science basically means the arrangement of electrons in an atom. I don't know what it means.
Science Grade 8 Science Science Grade 9

12/06/17

Why is it important to average the speed using 3 trials?

I’m in an honors science class so it’s somewhat like high school science.
Science Grade 8 Science

12/06/17

What causes force ?

What is force ? What causes force ?

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