What is Efficiency of an air conditioner if there is a work input of 320 J and awork output of 80 J?
what is 25%
100
What does the jagged line separate on the periodic table?
what are metals and non-metals
100
What is a ball moving at 30 m/s has a momentum of 15 kg m/s. the mass of the ball is
what is 0.5kg
100
What kind of factor is soil?
what is Abiotic
100
What is a push or pull
what is a force
200
What is the mass of the copper if from 1942 to 1945, US nickels were made of an alloy that contained 35% silver, 9.0% manganese, and the rest copper, by mass. If one of these nickels has a mass of 5.0 grams?
what is 2.8 g
200
What element has 11 protons?
what is Sodium
200
how much force is needed to accelerate a 1,300 kg car at a rate of 1.5 m/s?
what is 1,950 n
200
What does Carne mean?
what is Meat
200
What is the mass of substance that fits inside a certain volume
what is density
300
What is symbiosis What is the word used to describe the types of relationships that organisms have with each other?
What is symbiosis
300
An unknown silvery powder has a constant melting point and does not chemically or physically separate into other substances. The unknown substance can be classified as?
what is a mixture
300
How much work is peformed when a 50 kg crate is pushed 15 m with a force of 20 n?
what is 300 j
300
The first animal or insect to eat plants is called the what consumer?
what is primary
300
What is made up of 2 hydrogen atoms covalently bonded to an oxygen atom?
What is Water
400
What is when water moves from an area of low solute concentration to an area of high solute concentration?
What is osmosis
400
Oxygen is an example of?
what is a molecule
400
a car traveled 150km in 2.5 hrs. what was its average speed in kilometers per hour?
what is 60 km/hr
400
What is the process that DNA passes information to RNA?
what is transcription
400
What is it when a water molecule clings to other kinds of molecules because of polarity?
What is Adhesion
500
What is when one organism kills and eats another organism?
What is predation
500
What change is iron rusting to produce iron oxide?
what is chemical
500
Which property of water remains constant no matter what is dissolved in it?
What is the ratio of hydrogen ion concentration
500
If the template strand of DNA is 5' AGATGCATC 3'. What is the complimentary strand?
What is 3' TCTACGTAG 5'
500
What does the cohesive forces between water molecules cause?