6th_Unit 4 Review Flashcard

Front

What is gravitational potential energy (PE)?

Back

Gravitational potential energy is the energy an object possesses due to its height above the ground. It is calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

How does height affect gravitational potential energy?

Back

As the height of an object increases, its gravitational potential energy also increases, assuming mass remains constant.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What factors affect kinetic energy?

Back

Kinetic energy is affected by the mass of the object and its velocity. Increasing either mass or velocity will increase kinetic energy.

Front

What is net force?

Back

Net force is the total force acting on an object after all the individual forces are combined. It determines the object's acceleration.

Front

How do you calculate net force?

Back

Net force can be calculated by adding all the forces acting on an object, taking into account their directions. For example, if two forces act in the same direction, they are added; if they act in opposite directions, they are subtracted.

Front

What is the relationship between potential energy and kinetic energy in a rollercoaster?

Back

In a rollercoaster, potential energy is highest at the highest points, while kinetic energy is highest at the lowest points. Energy transforms between the two forms as the coaster moves.

Front

What happens to kinetic energy as an object rises?

Back

As an object rises, its kinetic energy decreases while its gravitational potential energy increases.

Front

What is the formula for calculating gravitational potential energy?

Back

The formula for gravitational potential energy is PE = mgh, where m is mass, g is the acceleration due to gravity (approximately 9.8 m/s²), and h is height.

Front

What is the formula for calculating kinetic energy?

Back

The formula for kinetic energy is KE = 1/2 mv², where m is mass and v is velocity.