Question 1

Inside a freely-falling elevator, you would have no

Accepted Answer

A) gravitational force on you. 
B) weight. 
C) both of these 
D) neither of these 
A) gravitational force on you. 
B) weight. 
C) both of these 
D) neither of these

Question 2

A very massive object A and a less massive object B move toward each other under the influence of gravity. Which force, if either, is greater?

Accepted Answer

A) the force on A 
B) the force on B 
C) both forces are the same. 
A) the force on A 
B) the force on B 
C) both forces are the same.

Question 3

When you step on a weighing scale at noon, Earth pulls you downward and the overhead Sun pulls you upward. The reason the Sun's pull doesn't decrease your weight at noon is because

Accepted Answer

A) the Sun's pull on you is negligibly small. 
B) the weighing scale is calibrated only in Earth weight. 
C) you, the scale, and Earth are in free fall (in orbit)around the Sun. 
D) the Sun's pull is cancelled by the gravitation of other celestial bodies. 
E) of tidal effects in the "solid" Earth. 
A) the Sun's pull on you is negligibly small. 
B) the weighing scale is calibrated only in Earth weight. 
C) you, the scale, and Earth are in free fall (in orbit)around the Sun. 
D) the Sun's pull is cancelled by the gravitation of other celestial bodies. 
E) of tidal effects in the "solid" Earth.

Inside a freely-falling elevator, you would have no

A very massive object A and a less massive object B move toward each other under the influence of gravity. Which force, if either, is greater?

When you step on a weighing scale at noon, Earth pulls you downward and the overhead Sun pulls you upward. The reason the Sun's pull doesn't decrease your weight at noon is because

About Science

Newtons First Law of Motion: Inertia

Linear Motion

Newtons Second Law of Motion

Newtons Third Law of Motion: Action and Reaction

Momentum

Energy

Rotational Motion

Projectile and Satellite Motion

Atomic Nature of Matter

Solids

Liquids

Gases and Plasmas

Temperature, Heat, and Expansion

Heat Transfer

Change of Phase

Thermodynamics

Vibrations and Waves

Sound

Musical Sounds

Electrostatics

Electric Current

Magnetism

Electromagnetic Induction

Properties of Light

Color

Reflection and Refraction

Light Waves

Light Emission

Light Quanta

The Atom and the Quantum

Atomic Nucleus and Radioactivity

Nuclear Fission and Fusion

Special Theory of Relativity

General Theory of Relativity

Systems of Measurement

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Exam 9: Gravity

Inside a freely-falling elevator, you would have no

A very massive object A and a less massive object B move toward each other under the influence of gravity. Which force, if either, is greater?

When you step on a weighing scale at noon, Earth pulls you downward and the overhead Sun pulls you upward. The reason the Sun's pull doesn't decrease your weight at noon is because

About Science

Newtons First Law of Motion: Inertia

Linear Motion

Newtons Second Law of Motion

Newtons Third Law of Motion: Action and Reaction

Momentum

Energy

Rotational Motion

Projectile and Satellite Motion

Atomic Nature of Matter

Solids

Liquids

Gases and Plasmas

Temperature, Heat, and Expansion

Heat Transfer

Change of Phase

Thermodynamics

Vibrations and Waves

Sound

Musical Sounds

Electrostatics

Electric Current

Magnetism

Electromagnetic Induction

Properties of Light

Color

Reflection and Refraction

Light Waves

Light Emission

Light Quanta

The Atom and the Quantum

Atomic Nucleus and Radioactivity

Nuclear Fission and Fusion

Special Theory of Relativity

General Theory of Relativity

Systems of Measurement

Filters