Unit 8.1 Flashcard 5

Front

What is kinetic energy?

Back

Kinetic energy is the energy that an object possesses due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Tags

NGSS.HS-PS3-2

Front

What is the principle of conservation of momentum?

Back

The principle of conservation of momentum states that the total momentum of a closed system remains constant if no external forces act on it.

Tags

NGSS.HS-PS2-2

Front

What is Newton's third law of motion?

Back

Newton's third law states that for every action, there is an equal and opposite reaction.

Tags

NGSS.MS-PS2-1

Front

How does force affect the motion of an object?

Back

Force is needed to change the speed or direction of an object's motion. A net force acting on an object will cause it to accelerate.

Tags

NGSS.HS-PS2-1

Front

What is a net force?

Back

A net force is the vector sum of all the forces acting on an object, determining the object's acceleration.

Tags

NGSS.HS-PS2-1

Front

What happens to kinetic energy during a collision?

Back

During a collision, kinetic energy can be transferred between objects, converted to other forms of energy, or conserved, depending on the type of collision (elastic or inelastic).

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved. In inelastic collisions, momentum is conserved, but kinetic energy is not.

Tags

NGSS.HS-PS2-2

Front

What is the role of gravity in motion?

Back

Gravity is a force that attracts objects toward each other, affecting their motion and causing them to accelerate downward at 9.81 m/s² near the Earth's surface.

Tags

NGSS.HS-PS2-4

Front

How does mass affect kinetic energy?

Back

Kinetic energy is directly proportional to mass; as mass increases, kinetic energy increases if velocity remains constant.

Front

What is the relationship between force and acceleration?

Back

According to Newton's second law, force is equal to mass times acceleration (F = ma), meaning that greater force results in greater acceleration.

Tags

NGSS.HS-PS2-1