A concrete dam holds back a large reservoir of water.

An archer has pulled back the string of his bow, ready to release the arrow at the distant target.

A women swings her golf club down toward the golf ball sitting on the tee.

A man swings an axe toward a log.

A flowerpot is falling from a windowsill.

A catapult is loaded with a boulder and pulled back into position. It is ready to be launched.

A fast-moving stream runs toward the mill.

The baseball player swings her bat.

A roller coaster has reached the top of the highest crest.

A marble rolls across the table.

A child is about to let go of a yo-yo.

A rock sitting at the top of a hill.

An apple falling from the tree.

A dog standing on the side of the street.

A racehorse about to cross the finish line.

A kid at the top of the slide.

A bird resting on the tree.

A lion chasing a zebra.

A cat chasing a rat.