Problemas
Select forms of kinetic energy A Running Running B A pendulum at its highest point Molecules vibrating D A chemical reaction
Roztwór
Samuel
maestro · Tutor durante 5 años
4.2
(137 Votos)
Respuesta
The forms of kinetic energy among the given options are A (Running) and C (Molecules vibrating).
Explicación
## Step 1Kinetic energy is the energy that an object possesses due to its motion. This energy is dependent on the speed of the object and its mass. The formula for kinetic energy is:###
where
is the mass of the object and
is the velocity of the object.## Step 2Looking at the options, we can see that option A, "Running", involves motion, hence it is a form of kinetic energy.## Step 3Option B, "A pendulum at its highest point", is not a form of kinetic energy because at this point, the pendulum is at rest and its velocity is zero. Therefore, it has potential energy, not kinetic energy.## Step 4Option C, "Molecules vibrating", involves motion, hence it is a form of kinetic energy.## Step 5Option D, "A chemical reaction", does not necessarily involve motion. While there may be movement of particles during a chemical reaction, the reaction itself is not a form of kinetic energy.