#1Flashcard - Speed, Mass, and Kinetic Energy

Front

What is the relationship between mass and kinetic energy?

Back

Kinetic energy is directly proportional to mass. If you triple the mass, the kinetic energy also triples.

Front

How do you calculate speed?

Back

Speed is calculated using the formula: Speed = Distance / Time.

Front

If a lizard runs 8 m in 4 seconds, what is its speed?

Back

2 m/s.

Front

What happens to Timmy's distance from school in section C of the graph?

Back

Timmy is walking back to school because he forgot his math book.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

If the kayak's kinetic energy is 1/4 of the canoe's, what does this imply about their speeds or masses?

Back

It implies that either the kayak has a lower speed or mass compared to the canoe.

Front

What is the formula for kinetic energy?

Back

Kinetic Energy = 1/2 * mass * velocity^2.

Front

If you double the speed of an object, how does its kinetic energy change?

Back

The kinetic energy increases by four times, since it is proportional to the square of the speed.

Front

What is the unit of measurement for kinetic energy?

Back

The unit of measurement for kinetic energy is Joules (J).

Front

What does it mean if an object has zero kinetic energy?

Back

It means the object is at rest and not moving.