Question

2 what would cause a change in a bike’s kinetic energy? choose three.
pedaling the bike faster
applying the bikes brakes while it is moving
chaining the bike to a pole
storing the bike in an attic
pedaling the bike slower

Explanation:

Kinetic energy ($KE = \frac{1}{2}mv^2$) depends on mass and speed. Pedaling faster increases speed (more KE), braking while moving decreases speed (less KE), pedaling slower decreases speed (less KE). Chaining to a pole or storing in an attic don't change speed/mass related to motion.

Answer:

A. Pedaling the bike faster, B. Applying the bike's brakes while it is moving, E. Pedaling the bike slower