Physics chapter 9 pt 2

If the Moon were covered with water, tidal effects caused by Earth would find the Moon with

2 tidal bulges

If an object is placed exactly halfway between Earth and the Moon, it would fall toward the

Earth

Wobbles in the path of Uranus led to the discovery of

Neptune

The concept of force is fundamental to

Newton's theory of gravitation.

Which pulls on the oceans of Earth with a greater force?

Sun

Which of these three produces the greatest tidal effect on you right now?

The Earth

The difference between Newton's law as a proportion and an equation involves

The constant G

An asteroid exerts a 360-N gravitational force on a nearby spacecraft. The 360-N force on the spacecraft is directed

Toward the asteroid

We do not observe tides in a community swimming pool because

all parts of it practically the same distance from the Moon

Rate this statement: No force due to Earth's gravity acts on astronauts inside the orbiting space station.

always false

If Earth's radius somehow increased with no change in mass, your weight would

decrease

If Earth's mass decreased to one-half its original mass with no change in radius, then your weight would

decrease to half

On each given day and location, tides rise and fall at

different times

During an eclipse of the Sun the high ocean tides on Earth are

extra high

The force of Earth's gravity on a capsule in space increases as it comes closer. When the capsule moves to half its distance, the force toward Earth is then

four times greater

Inside a freely-falling elevator, you would have no

gravitational force on you or weight

You can experience weight

in a rotating habitat in space, standing on Earth's surface, and in an accelerating elevator away from earth

If the mass of Earth somehow increased with no change in radius, your weight would

increase also

As two objects moving toward each other due to gravity get closer, the acceleration of each

increases

Two objects move toward each other due to gravity. As the objects get closer and closer, the force between them

increases

When the distance between two stars decreases by one-third, the force between them

increases to nine times as much

If the Moon had twice as much mass and still orbits Earth at the same distance, ocean bulges on Earth would be

larger

If the Moon were four times as massive but twice as far from Earth, high tides on Earth would be

lower

Which is most responsible for Earth's ocean tides?

moon

Tides caused mainly by the Moon occur in Earth's

oceans, atmosphere and interior

The main reason ocean tides exist is that Moon's pull is stronger

on water closer to it then on water further away.

Which rocket would require more fuel?

one going from Earth to the Moon

The force of Earth's gravity on a capsule in space will lessen as it moves farther away. If the capsule moves to twice its distance, the force toward Earth becomes

one-fourth

The force of gravity acts on all apples on an apple tree. Some apples are twice as far from the ground as others. For the same mass these twice-as-high apples have

partically the same

For lunar tides to occur in the human body,

parts of the body would have to be appreciably closer to the Moon than other parts.

An outcome of universal gravitation is that

planets aren't cubes with sharp corners, its discovery prompted other laws of nature, prediction and discovery of planets.

If the Sun became twice as massive, your attraction to the Sun would double and your weight as measured on Earth would

quadruple

If your mass, the mass of Earth, and the mass of everything in the solar system were twice as much as it is now, yet everything stayed the same size, your weight on Earth would

quadruple

If the Sun collapsed to a black hole, Earth's gravitational attraction to it would be

remain the same

When a star collapses to form a black hole, its mass

remains the same

If you drop a stone into a hole drilled all the way to the other side of Earth (neglect the molten core), the stone will

speed up until it gets to the Earth's surface

The force of gravity acting on you will increase if you

stand on a planet with a shrinking radius

The origin of any microtides in the human body is most likely the

the earth

Which produces a greater tidal effect in your body, the Moon or a 1-kg melon held at arm's length above your head?

the melon

If you bounce up and down on a bathroom scale, what varies on the scale reading is

the normal force

A black hole is

the remains of a giant star that has undergone gravitational collapse

According to Newton, when the distance between two interacting objects doubles, the gravitational force is

the same

One side of the Moon continually facing Earth is

tidal lock

Inside a freely-falling runaway elevator, your

weight is zero

Passengers in a high-flying jumbo jet feel their normal weight in flight, while passengers in an orbiting space vehicle do not, because passengers in the space vehicle are

without support forces

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

you, the scale, and earth are in free fall