Forces and Motion

Front

What force pulls objects toward the center of the Earth?

Back

Gravity.

Tags

NGSS.MS-PS2-4

Front

Do like magnetic poles attract each other?

Back

False. Like poles repel each other.

Tags

NGSS.MS-PS2-3

Front

What is the combination of all forces acting on an object called?

Back

Net Force.

Tags

NGSS.MS-PS2-2

Front

Are magnetic poles the same as geographic poles?

Back

False. They are different.

Front

What factors affect gravitational attraction between two masses?

Back

Gravitational attraction changes with the masses of the objects and the distance between them.

Tags

NGSS.MS-PS2-4

Front

What is the force that opposes the motion of an object through a fluid?

Back

Drag Force.

Front

What is the term for the rate of change of velocity?

Back

Acceleration.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for calculating weight?

Back

Weight = mass × gravity (W = mg).

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.