Kinetic Energy

Question 1

Kinetic energy is energy of…

Answer 1

Movement.

Question 2

Anything that is moving has…

Answer 2

Kinetic energy.

Question 3

What is the formula for kinetic energy?

Answer 3

1/2 x mass x speed2 = kinetic energy.

Question 4

Kinetic energy depends on both…

Answer 4

Mass.

Speed.

Question 5

The more it weighs and the faster it’s going…

Answer 5

The more kinetic energy it has.

Question 6

Small mass, not fast…

Answer 6

Low kinetic energy.

Question 7

Kinetic energy transferred is what?

Answer 7

Work done.

Question 8

To slow a car down what needs to happen?

Answer 8

The kinetic energy needs to be converted into other types of energy.

Question 9

What does the conservation of energy state?

Answer 9

That energy can never be destroyed or created.

Only converted into different forms.

Question 10

To stop a car, what does the kinetic energy covert into?

Answer 10

Heat energy as friction between the wheels and the brake pads cause temperature of the brakes to increase.

Question 11

M stands for?

Answer 11

Mass of car and passengers.

kg.

Question 12

V stands for?

Answer 12

Speed of car.

m/s.

Question 13

F stands for?

Answer 13

Maximum breaking force.

N.

Question 14

D stands for?

Answer 14

Braking distance.

m.

Question 15

Falling objects covert ______ _____ into ______ _____

Answer 15

Potential energy - Ep.

Kinetic energy - Ek.

Question 16

Further it falls…

Answer 16

Faster it goes.

Question 17

Kinetic energy gained=

Answer 17

Potential energy lost.

Question 18

Some kinetic energy is converted into…

Answer 18

Heat.

Sound.

Question 19

When meteors and space shuttles enter the atmosphere they have what?

Answer 19

Very high kinetic energy.

Question 20

Friction due to collisions with….

Answer 20

Particles.

Question 21

Friction due to collisions with particles in the atmosphere transfers…

Answer 21

Some kinetic energy to heat energy and work is done.

Question 22

Why do meteors not hit the earth?

Answer 22

As they temperatures get so extreme they burn up.

Question 23

What are the biggest meteors called?

Answer 23

Meteorites.

Question 24

Space shuttles have heat shields made from what?

Answer 24

Special materials which lose heat quickly.

Allowing shuttle to re-enter the atmosphere without burning up.