Physical Science 2
Terms
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- Inertia increases as _________ increases.
- mass
- _____ use physical science to explain how plants use carbon dioxide and water to make food.
- Botanists
- The field of ______ uses physical science to explain the composition of planets, the light emitted by stars, and the motionof different galaxies in the universe.
- astronomy
- Graduated cylinders are used to measure _________?
- the volume of liquids
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The mass of an elephant on the moon would be?
a)less than its mass on Mars
b)more than its mass on Mars
c)the same as its weight on the moon
d)none of the above - d.none of the above
- You accidentally break your pencial in half.This is an example of?
- a physical change
- An amount of vinegar would be expressed in _______ for scientific experiments.
- liters or milliliters.
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Which of the following is NOT a chemical property?
a)reactivity with oxygen
b)malleability
c)flammability
d)reactivity with acid - b.malleability
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Which of the following statements are true?
a)Density depends on mass and volume.
b)Density is weight per unit volume.
c)Density is measured in milliliters.
d)Density is a chemical property. - a.density depends on mass and volume
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Which of the following pairs of objects would have the greatest attraction toward each other due to gravity?
a)a 10 kg object and a 10kg object,4 m apart
b)a 5 kg object and a 5 kg object, 4 m apart
c)a 10 kg object and a 10 kg object, 2 - c. a 10 kg object and a 10 kg, 2 m apart
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Which of the following is NOT a physical property of matter?
a)ductility
b)color
c)Thermal conductivity
d)Reactivity to water - d. reactivity to water
- A _______ object has more inertia than a 20 kg object.
- 30,000 g.
- During physical changes, matter always reatins its what?
- identity
- One way to compare the densities of oil and water is to pour the liquids into a glass container and observe how they ______?
- seperate into layers
- Physical Science is the study of?
- Matter and energy
- 10 m is = to
- 1,000 cm and 10,000 mm
- For a hypothesis to be valid, it must be
- Testable and supported by evidence
- The statement "Sheila has a stain on her shirt" is an example of a(n)
- observation
- A hypothesis is often developed out of what?
- observations and experiments
- How many milliliters are in 3.5 kL?
- 3,500,000 mL
- A map of Seattle is an example of a
- model
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Which of the following is an example pf technology?
a) mass b) physical science c)screwdriver or d) none of these - c. screwdriver
- Physical science is often divided into physics and?
- chemistry
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Which of the following situations is LEAST likely to involve elements of physical science?
a)earthquake waves traveling through Earth's layers
b)plants using the sun's energy to make food
c)social interactions between animals
d)pollut - c.social interactions between animals
- A _______ is a summary of many experimental results and observations.
- scientific law
- What object contains more matter than a 15 kg object?
- 20,000 g.
- Colored balls and sticks arranged to show the types and placement of particles in a water molecule is an example of a?
- model
- The field of _____ uses physical science to explain how the heart pumps blood, how the eyes work and how the brain sends electrical impulses throughout the body.
- biology
- Technology
- is sometimes called applied science, applies scientific understanding to colve problems, and can r efer to objects used to accomplish tasks.
- The amount of space taken up by an object is known as the object's ______.
- volume
- To measure the volume of water correctly, read the scale on a graduated cylinder at the ______ part of the meniscus.
- lowest
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Weight and what are the same thing?
a)mass c)inertia
b)volume d)none of the above - d. none of the above
- Over time, you can expect the amount of mass to change in a ?
- child
- Gravity affects an object's what?
- weight
- The SI unit of force is the what?
- newton(N)