Energy

You throw a tennis ball up in the air from the ground. As the ball goes higher, what happens to its total energy?

• increases

• decreases

• stays the same

You throw a tennis ball up in the air from the ground. As the ball goes higher, what happens to its kinetic energy?

• increases

• decreases

• stays the same

You throw a tennis ball up in the air from the ground. As the ball goes higher, what happens to its potential energy?

• increases

• decreases

• stays the same

When the ball leaves the ground, it has 10 J of kinetic energy and 0 J of gravitational potential energy. How much kinetic energy does it have at its highest point?

• 10 J

• 5 J

• 0 J

• 2,5 J

When the ball leaves the ground, the ball has 10 J of kinetic energy and 0 J of gravitational potential energy. How much potential energy does it have at the highest point?

• 10 J

• 5 J

• 2.5 J

• 0J

When the ball leaves the ground, the ball has 10 J of kinetic energy and 0 J of gravitational potential energy. How much kinetic energy does it falls back to the ground?

• 10 J

• 5 J

• 2,5 J

• 0 J

What type of energy is stored in natural gas?

• kinetic energy

• potential energy

• thermal energy

• chemical energy

What type of energy is stored in wind?

• kinetic energy

• potential energy

• chemical energy

• nuclear energy

What type of energy do you have at the top of a roller-coaster

• kinetic energy

• potential energy

• chemical energy

• electrical energy

What energy transformation occur when a book falls off a shelf?

• from kinetic to potential

• from chemical to kinetic

• from potencial to kinetic

• from potetial to chemical