Gravity, Motion, and Tides (Chapter 5 Test)

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. An object with greater inertia is harder to start or stop.

Front

What two factors affect the force of gravity?

Back

The two factors that affect the force of gravity are distance and mass.

Front

Why does the moon orbit Earth instead of the sun?

Back

The moon orbits Earth because it is closer to Earth than to the sun, making Earth's gravitational pull stronger on the moon.

Front

What moon phases occur during spring tides?

Back

Spring tides occur during the new moon and full moon phases.

Front

What are tides?

Back

Tides are the rise and fall of Earth's oceans caused by the gravitational pull of the sun and moon.

Front

What is the difference between spring tides and neap tides?

Back

Spring tides are higher high tides and lower low tides that occur during new and full moons, while neap tides are lower high tides and higher low tides that occur during the first and third quarters of the moon.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies toward each other, such as the attraction between Earth and objects on it.

Front

How does mass affect gravity?

Back

The greater the mass of an object, the stronger its gravitational pull.

Front

What is the role of the sun in tides?

Back

The sun's gravitational pull also affects tides, but its effect is less than that of the moon due to its greater distance from Earth.

Front

What is the gravitational pull?

Back

Gravitational pull is the force exerted by a mass that attracts other masses toward it.