Forces and Interactions

What is motion?

• the resistance and object feels as it moves across another surface

• a push or pull

• a change in an object's position

In which of the following situations is force applied?

• a person walking

• shooting a basketball

• sitting in a chair

• all of the above

Tags

NGSS.MS-PS2-2

Which of the following situations would cause change in an object's motion?

• A power-lifter lifting weights

• Kicking a soccer ball

• Rowing a boat

• All of the above

Tags

NGSS.MS-PS2-2

An unbalanced force occurs when

• One force is stronger than an opposing force

• Two opposing forces are equal

• Neither answer

• Both answers

Tags

NGSS.MS-PS2-2

The net force acting on a person swinging include

• Gravity pulling the person towards the Earth

• The force of the person pushing the swing

• The force of the chains pulling the swing upward

• All of the above

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A balanced force occurs when

• There are two opposing forces but no motion

• One force is stronger than an opposing force, causing movement

• And object is moving in a certain direction with a constant velocity

• The force of an object is equal to its mass times its velocity

The Net force on an object is

• The pushing force an object experiences

• A balanced force

• All the forces combined that are acting on the object

Tags

NGSS.MS-PS2-2

If an object is not moving, the forces are balanced.

• True

• False

Tags

NGSS.HS-PS2-1

What is the unit for force?

• Newton

• Kilogram

• Miles per hour

The resistance between two object's surfaces interacting

• Force

• Gravity

• Matter

• Friction