EVERYDAY SCIENCE

Detailed explanation-1: -When the forces acting on an object are unbalanced, they do not cancel out one another. An unbalanced force acting on an object results in the object’s motion changing. The object may change its speed (speed up or slow down), or it may change its direction.

Detailed explanation-2: -Unbalanced forces can cause an object to change its motion. If an object is at rest and an unbalanced force pushes or pulls the object, it will move. Unbalanced forces can also change the speed or direction of an object that is already in motion. A game of tug-of-war is a great way to illustrate an unbalanced force.

Detailed explanation-3: -An unbalanced force causes a change in motion, speed, direction, or movements because of unequal force or strength that is applied to one side of an object. Opposite sides have forces acting against them, but in the case of unbalanced forces, one side has more energy than the other.

Detailed explanation-4: -Students understand that unbalanced forces affect motion of objects by causing them to accelerate, decelerate or change direction.

Detailed explanation-5: -For example, consider a soccer game. The soccer ball is already moving when it is passed from one player to another. When the ball reaches the second player, the player exerts an unbalanced force-a kick-on the ball. After the kick, the ball moves in a new direction and with a new speed.