Forces and Motion

What is force?

• A push or pull that causes an object at rest to move.

• A push or pull that causes an object to remain in the same place.

• An attraction between two objects.

• Something that opposes motion.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Gravity is....

• A force that cancels another one out by being in an equal and opposite direction.

• The force of attraction between objects.

• A push or pull which causes a change in motion.

• A forces that acts between two touching objects and that opposes motion.

Tags

NGSS.5-PS2-1

Larger forces cause a ______ change in motion.

• larger

• smaller

Tags

NGSS.MS-PS2-2

Friction is ...

• Equal and opposite force that causes no change in motion.

• A push or pull that causes a change in motion.

• A force that acts between two touching objects and that opposes motion.

• An unequal force of motion that causes change in the direction of the greater force.

The size of the force ________ as the mass of the object _______.

• increases; decreases

• decreases; increases

• increases; increases

Tags

NGSS.MS-PS2-2

Air resistance is...

• A push or pull that causes a change in motion of an object.

• A force of attraction between two objects.

• A force that opposes motion.

• Friction that exists between air and a moving object.

Balanced forces are..

• forces that change an object's shape.

• forces that cancel each other out because they are equal and opposite forces.

• forces that are unequal and pull the objects in the direction of the greater force.

• a push or pull that causes a change in motion of an object.

Unbalanced forces are...

• forces that cause a change in the object's motion in the direction of the greater force.

• forces that are equal and opposite, causing no change in motion of the objects.

• a push or pull of an object.

• a force that opposes motion.

Tags

NGSS.MS-PS2-2

Acceleration depends on which two things.

• force

• distance

• mass

• object

Tags

NGSS.MS-PS2-2

When two or more forces are acting on the same object in the same direction, you _____ the forces.

• add

• subtract

• the force is zero

• multiply

Tags

NGSS.MS-PS2-2