Orbit & Gravity

The tendency of an object to resist a change in motion and continue moving in a straight line (like going around a curve in a car makes you lean to one side)

• mass

• gravity

• inertia

• weight

If the distance between objects increases, the force of gravity will ___________________________.

• increase

• decrease

• Increase, then decrease

• No change in gravity

Why doesn’t the gravitational pull between the Sun and the planets cause the planets to fall into the Sun?

• The inertia of the planets is in a direction away from the sun.

• The Sun’s rotation pushes the planets out.

• The Sun’s magnetic fields are pushing out.

• The background stars pull back on the planets.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What two forces affect an object's orbit?

• magnetism and inertia

• gravity and thermal energy

• thermal energy and magnetism

• gravity and inertia

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What relationship between gravity and inertia (speed) is necessary for planets or satellites to remain in orbit?

• Gravity is greater than inertia

• Inertia is greater than gravity

• Gravity and inertia are in balance

• None of the Above

Tags

NGSS.MS-ESS1-2

Which planet would be traveling at the slowest speed?

• Planet b

• Planet c

• Planet d

• Planet e

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

NGSS.MS-PS3-1

The strength of gravity is determined by two things. They are

• distance apart and whether they are made of metal

• total mass and distance apart

• total mass and how close it is to the Earth

• how close it is to the Earth and whether they are made of metal

Tags

NGSS.MS-PS2-4

What is the name for the path that objects travel on as they rotate around a larger object because of gravity?

• ellipse

• tides

• gravity

• orbit

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

The Earth's orbit around the Sun is a perfect circle.

• True

• False

A(n) _?_ is the time it takes an object to travel once in a one complete orbit.

• phase
• rotation
• revolution
• axis

Tags

NGSS.MS-ESS1-2