Study Jams ---Gravity & Inertia

Which of these can cause a moving object to change direction?

• a. inertia

• b. velocity

• c. force

• d. mass

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-2

What is gravitational force?

• a. the force that keeps people from moving

• b. the force of attraction between any two objects

• c. the force that makwes inert objects start moving

• d. the only force that changes an object's velocity

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Where is an object’s center of gravity?

• a. the exact center of its mass

• b. the part that is closest to the Earth

• c. any part of anobject, as long as it has mass

• d. all of the above

A paperclip and a computer are sitting on your desk. What is true about the gravitational force of these two objects?

• a. the paperclip attracts the computer with less gravitational force than the computer attracts the paperclip

• b. The computer and the paperclip attract each other with equal gravitational force

• c. the computer attracts the paperclip with less gravitational force than the paperclip attracts the computer

• d. There is no gravitational force between the papereclip and the computer

Tags

NGSS.MS-PS2-4

Why don’t we see the ground coming toward us?

• a. We have less gravitational force than the Earth

• b. We have more inertia than the Earth

• C. We have less mass than the Earth

• d. We are alllready standing on the Earth

Why doesn’t the moon crash toward the Earth’s surface?

• a. It has very little inertia, so it stays in the sky and floats through space.

• b. It has a lot of mass, so it feels the Earth's gravitational force less than smaller objects do.

• c. It has more mass than the Earth, so it stays in one place while the Earth orbits it.

• d. It is too small to fall through the Earth's atmosphere and reach the Earth's surface.

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Why is it impossible to “defy gravity”?

• a. There is no gravity.

• b. You can't defy gravity without going to another planet.

• c. Gravitational force exists every place where there are two objctss.

• d. Nothing has enough force to resist gravity.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5