Answer the question below:   Dan wanted to flick Carlos hard with a rubber band. To flick him the hardest, Dan needs to move his hands closer or further away?    Assuming that:  The farther apart you move your hands, the stronger the force of the rubber band pulling your hands together.
further away

Answer the question below:   If Jim decreases the frequency of the radio waves on his shortwave radio, will the radio use less energy? or more or?    Assuming that:  In electromagnetic waves with higher frequencies, photons have more energy.
less energy?

Answer the question below:   Jim was at the baseball game with his friends. Almost immediately he observed that the harder the ball was hit, the effect on the acceleration was decreased or increased?    Assuming that:  The harder the batter hits the ball, the greater will be its acceleration.
increased

Answer the question below:   If Jim wants to increase the amount of acceleration applied to a baseball he must hit it harder or softer?    Assuming that:  The harder the batter hits the ball, the greater will be its acceleration.

harder