Physical science Flashcards by Victoria Broussard

Energy is measured in?
A. Joules
B. Newtons
C. Calories
D. Both A and C

D. Both a and c

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Compasses work by?

Reacting to magnetic fields

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Mass is A measure of

How much matter and object contains

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Which of the following is not a state of matter?
A. Ether
B. Liquid.
C. Gas.
D. Solid.

A. Ether

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A chemical reaction?

Rearranged an elements molecule structure

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Which state of matter has a definite volume, but no definite shape?

Liquid

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Which of the following is not a form of energy?
A. Thermal.
B. Sound
C. Electric.
D. Plastic.

D. Plastic

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What term describes the amount of matter in an object

Mass

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Which of the following is a chemical change?
A.boiling water
B. Dissolving sugar and water.
C. Rusting iron.
D. Melting ice.

Rusting iron

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What light phenomenon causes rainbows

Refraction

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An element elements atomic number indicates a number of?

Protons

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The electromagnetic spectrum measures

Radiation

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Compounds are elements that have?
A. Mixed in various ratios.
B. Combined as liquid liquids and solids.
C. Created toxic chemicals.
D. Joined together in specific ratios.

Join together in specific ratios

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Which of the following is not true of gases?
A. They have no definite volume.
B. They have no definite shape.
C. Gases cannot even evenly fill in container.
D. They are also called vapors.

C. Gases cannot evenly fill the container.

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The unit of frequency is.

Hertz

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What is the SI unit of work?

Joules

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Why do two magnets pull together when in North Pole and South Pole are close to each other?

Opposites attract

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What is the primary process by which heat is transferred in solids?

Conduction

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Which of the following happens when a solid gains enough heat energy?

It melts, changing from a solid to a liquid

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What is thermal equilibrium?

The condition where two objects are the same temperature and no heat flows between them

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What determines an element atomic number?

The number of protons

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What element has an atomic number of one

Hydrogen

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Which of newtons laws says that every action has an equal and opposite reaction

The third law of motion

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Inertia is

An objects tenancy to resist changes in it’s movement

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What determines whether matter is in a solid, liquid, or gas state in its usual condition.

Kinetic energy

What is the pH of pure water?

Seven

When water is heated from a liquid to a gas The molecules?

The molecules move more quickly and become more spread out

At what point does water stay at a consistent temperature during the heating process?

When it reaches its boiling point

The formula you need to determine force is

F with an arrow above it; equals, M and a with the arrow above

The element with the lowest atomic number is.

Hydrogen

What is the term for an element or molecule that results from a chemical reaction?

Product

An object at rest?

Will stay at rest

A substance with a pH of three is

Less acidic than a substance with a pH of one

How many atoms of hydrogen are in the chemical compound H2Pr5I10

Two

What is the term for a change from a solid state directly to a gas state?

Sublimation

What type of energy is stored in the bonds of chemical compounds?

Chemical

According to a newtons law of universal gravitation, what happens to a gravitational force between two objects if the Distance between them is halved

The force is quadrupled

How do you read H2O as a chemical formula?

Two hydrogen atoms for every oxygen atom

If the temperature in Fahrenheit is 212°, the temperature in Celsius is?

100° * you take 212 and divided by 5/9, then subtract it by 32

Earthquakes occur along?

Faults

Climate is?

Patterns of weather over long periods of time

Which planet is known for a prominent ring system

Saturn

What is the earths primary source of energy?

The sun

A scientist who studies space and the universe is a?

Astronomer

What is the name of the galaxy that includes earth?

Milky Way

What causes the tides in earths ocean

The moon’s gravitational pull

Which planet is known as the red planet

Mars

Which is not a type of rock? A. Igneous. B. Metamorphic. C. Sedimentary. D.Rudimentary.

D. rudimentary

What element make up most of earths atmosphere

Nitrogen

Dinosaurs exist during the

Mesozoic era

The process that takes place inside, the sun’s core is?

Nuclear fusion

Which of the following is not a terrestrial planet? A . Earth. B. Venus. C. Saturn. D. Mercury

Saturn

Radiometric dating involves?

Observing the natural decay of radioactive elements in a fossil

Why are regions of earth unequal in daylight and darkness?

Because earth rotations on a tilted access

What is the term for the point on earth’s surface directly above an earthquake?

Epicenter

Approximately how thick is earths continental crust?

12 miles

What type of rocks are most likely to contain fossils?

Sedimentary

Approximately how hot is earth core?

5000 Fahrenheit to 15,000 Fahrenheit

What type of rock forms from slowly cold magma

Igneous

What percentage of earth surface is covered by the global ocean?

72%

The oceans primary role in earths climate system is too?

Drive weather and regulate temperature

The Earth atmosphere is approximately?

300 miles thick

Most weather changes occurring on earth?

Troposphere

What percentage of earths atmosphere is composed of nitrogen?

78%

The magnetosphere Is?

The outermost layer of the atmosphere

What happens when a cold front meets a warm air mass?

The warm air is pushed up, forming clouds and potential heavy rain

What is the difference between climate and weather?

Climate is an average pattern of Weather across the Earth or a specific Region, while weather refers to daily conditions

The dating technique that involves observing the natural decay of radioactive elements is?

Radiometric dating

Most weather Events take place in earth?

Troposphere

A comets tale is visible when?

The comet is close enough to the sun

Absolute zero is equivalent to?

Zero kelvins

Cool lava forms

Igneous rock

What are fast flowing, narrow air currents, located in earths atmosphere called?

Jetstream

What phenomenon occurs when earth travels between the sun and the moon

Lunar eclipse

The layer of earth directly above its outer core is The?

Asthenosphere

Which prefix is given to mid-level clouds?

alto

If you want to convert a temperature from Celsius to Fahrenheit, which Of the following steps is correct?

Multiplied by 9/5 and add 32

The first sheep, bears, apes, and modern birds appeared during the?

Neogene period of the Cenozoic era