Question

2.1.2 quiz: types of energy
question 8 of 10
which two factors are used to calculate kinetic energy?
a. the mass of an object
b. the density of an object
c. the height of an object
d. the velocity of an object
e. the chemical formula for the object

Explanation:

The formula for kinetic energy is \( KE=\frac{1}{2}mv^{2} \), where \( m \) is the mass of the object and \( v \) is the velocity of the object. Density (B) is mass per unit volume and not used in kinetic energy calculation. Height (C) is related to gravitational potential energy. Chemical formula (E) is related to chemical energy or properties of substances, not kinetic energy. So the two factors are mass (A) and velocity (D).

Answer:

A. The mass of an object, D. The velocity of an object