1. Speed: Forces can change the speed of an object. For example, applying a force to a stationary object will cause it to accelerate and increase in speed. Conversely, applying a force in the opposite direction of motion can cause an object to decelerate and decrease in speed.

2. Direction: Forces can also change the direction of an object's movement. For example, if a force is applied at an angle to the object's original path, the object will move in a curved trajectory.

3. Acceleration: Forces can cause objects to accelerate. Acceleration refers to the rate of change in an object's velocity, which includes both speed and direction.

4. Momentum: Applying forces to an object can change its momentum, which is the product of its mass and velocity. Momentum is a vector quantity, meaning that it has both magnitude and direction. Forces can change the momentum of an object by altering either its mass or its velocity.

5. Gravitational force: Gravitational forces play a crucial role in the movement of celestial bodies, such as planets, moons, and stars, in space. Gravitational forces attract objects towards each other, causing them to orbit or fall toward each other.

6. Frictional force: Frictional forces act in opposition to the motion of an object and can slow it down or even stop it. Friction occurs when two surfaces are in contact and slide or roll against each other.

7. Elastic force: Elastic forces arise in materials that can stretch and snap back to their original shape. These forces are responsible for the oscillatory motion of objects like springs and pendulums.

These are just a few examples of how forces can change the movement of an object. The specific effects of a force depend on the magnitude and direction of the force, as well as the mass and initial velocity of the object.