Why does the Sun not revolve around the Earth?

The Sun has a greater mass than Earth.

Even though Earth exerts gravity on astronaut floating in space he appears weightless. WHY?

Astronaut's mass is very small.

Where are earthquakes MOST LIKELY to occur?

near the edge of plate boundaries

If injecting wastewater in the ground increases earthquakes, what would happen if this stopped?

total earthquakes would decrease; natural ones would not

The Moon and Sun both affect the tides on earth, which provides evidence that

all objects exert a gravitational force on other objects.

What is the effect of a Spring Tide?

High tides are higher and low tides are lower than ususal.

If the gravity between the Sun and planets were to disappear, what would happen to the planets?

They would move in a straight line at a constant speed.

Why does the Moon have a greater influence on Earth's tides than the sun?

The Moon is closer to the Earth.

What is the effect of Neap Tides?

High tides are lower and low tides are higher than usual.

Spring Tides occur when the Moon is in what position(s)?

in a straight line with the Sun and Earth

What keeps the Earth from being pulled into the Sun?

the Earth's sideways motion (inertia)

Why do Spring Tides occur?

The Earth, Moon, and Sun line up in an almost straight line.

Why do Neap Tides occur?

The Sun and Moon are at a 90-degree angle to each other.

How do you know which planet has the greatest gravitational pull?

the planet with the largest mass

What environmental conditions would contribute to the extinction of a species?

global warming, disease, meteor shower

studbud

Gravity and Tides

23 termsStudBud Administration1,082 plays

Effects of gravity on earth and moon and what causes tides

Flashcards23 cardsFPractice quizPHost liveL

Questions 23

Answers

1
Why does the Sun not revolve around the Earth?
Earth has a greater gravitational force.
The Sun has a greater mass than Earth.
Mercury and Vensus are in the way.
Vensus's gravitational pull would interfere.
2
What causes planets to orbit around the Sun and the Moon to orbit around Earth?
the distances of planets from Sun and moon from Earth
magnetic force of each planet
inertia
gravity and inertia
3
How do you find the arrival time difference between P and S waves?
S waves minus P waves
S waves plus P waves
P waves plus S waves
P waves minus S waves
4
If Earth had 4 moons the same distance away, which moon would have greatest effect on tides?
all four moons would have equal effect regardless of mass
moon with least mass
only two moons could have an effect
moon with most mass
5
A cork tied to a string is whirled around your head. The tension in the string represents what?
mass
inertia
weight
gravity
6
Even though Earth exerts gravity on astronaut floating in space he appears weightless. WHY?
Astronaut's mass is very small.
Astronaut is closer to the sun.
Astronaut is far from Earth.
Astronaut's mass is very large.
7
Where are earthquakes MOST LIKELY to occur?
in the middle of a tectonic plate
near a mountain
near a rift valley
near the edge of plate boundaries
8
Name the number one factor most responsible for the ocean's tides.
Mar's gravity
Moon's gravity
Sun's gravity
Earth's gravity
9
If injecting wastewater in the ground increases earthquakes, what would happen if this stopped?
total earthquakes would increase
total earthquakes would decrease; natural ones would not
total earthquakes and natural ones would both decrease
total number of earthquakes would not change
10
In rock layers which rock is the oldest?
rocks at the top layer
rocks in the bottom layer
rocks on the surface of the top layer
rocks in the middle layers
11
The Moon and Sun both affect the tides on earth, which provides evidence that
few objects exert a gravitational force on other objects.
some objects exert a gravitational force on other objects.
many objects exert a gravitational force on other objects.
all objects exert a gravitational force on other objects.
12
What is the effect of a Spring Tide?
A Spring Tide has no effect on Earth's tides.
The high tides are lower than usual.
The low tides are higher than ususal.
High tides are higher and low tides are lower than ususal.
13
If the gravity between the Sun and planets were to disappear, what would happen to the planets?
They would remain in orbit.
They would move toward the Sun.
They would move in a straight line at a constant speed.
They would stop in their orbit.
14
Why does the Moon have a greater influence on Earth's tides than the sun?
The Moon has more mass than the Sun.
The Sun has less mass than the Moon.
The Sun has less gravitational force than the Moon.
The Moon is closer to the Earth.
15
What is the effect of Neap Tides?
High tides are higher than usual.
Neap Tides have no effect on the ocean's tides.
Low tides are lower than usual.
High tides are lower and low tides are higher than usual.
16
What theory is supported by same fossils being found on continents thousands of miles apart?
continental selection
natural drift
continental drift
natural selection
17
Spring Tides occur when the Moon is in what position(s)?
at a 90-degree angle to the Sun
at a 90-degree angle to the Earth
fartherest from the Earth
in a straight line with the Sun and Earth
18
What keeps the Earth from being pulled into the Sun?
the Earth's repelling gravitational force
the Earth's sideways motion (inertia)
the Earth's distance from the Sun
the Earth's strong convection currents
19
Why do Spring Tides occur?
The Moon and Sun are at right angles to each other.
The Earth, Moon, and Mars are in an almost straight line.
The Earth is closer to the Sun than the Moon.
The Earth, Moon, and Sun line up in an almost straight line.
20
Why do Neap Tides occur?
The Sun is between the Earth and the Moon.
The Sun and Moon are in a straight line with Earth.
The Earth is closer to the Sun than the Moon.
The Sun and Moon are at a 90-degree angle to each other.
21
Which of these are LIMITED natural resources?
coal, water, natural gas
wind, water, natural gas
wind, coal, natural gas
coal, oil, natural gas
22
How do you know which planet has the greatest gravitational pull?
the planet with the largest diameter
the planet with the biggest surface area
the planet with the smallest circumference
the planet with the largest mass
23
What environmental conditions would contribute to the extinction of a species?
drought, erosion, over-population
global warming, disease, meteor shower
monsoon, low/high tides, acid rain
solar eclipse, thunderstorm, full moon

Gravity and Tides Flashcards | StudBud