Force and Motion

Front

What is the force that pulls a ball to the ground after being dropped?

Back

Gravity

Tags

NGSS.HS-PS2-4

Front

What are forces that are equal in size but opposite in direction called?

Back

Balanced forces

Front

What is the force that opposes motion between two surfaces in contact?

Back

Friction

Front

What term describes a push or pull upon an object?

Back

Force

Tags

NGSS.3-PS2-1

Front

Why does a car traveling on a dirt road require more force than on a concrete road?

Back

The dirt road has more friction because the surface is not smooth.

Front

What is the relationship between force, mass, and acceleration according to Newton's second law?

Back

Force equals mass times acceleration (F = ma).

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Tags

NGSS.MS-PS2-2

Front

What is the difference between static friction and kinetic friction?

Back

Static friction acts on objects that are not moving, while kinetic friction acts on objects that are sliding past each other.

Front

What is the effect of unbalanced forces on an object?

Back

Unbalanced forces cause an object to accelerate in the direction of the net force.

Tags

NGSS.MS-PS2-2

Front

How does mass affect the gravitational force between two objects?

Back

The gravitational force increases as the mass of either object increases.

Tags

NGSS.MS-PS2-4