The movers lift the boxes at the same speed. Which box is lifted with a larger force?
a box holding 44 pounds a box holding 38 pounds
Two movers are putting heavy boxes into their truck. The boxes are the same shape and size. Each mover lifts one box up into the truck at a time.
A force is a push or a pull.
A force can make an object start moving or stop an object that is moving. A force can also make an object speed up, slow down, or change direction.
Forces can be different sizes.
Think about trying to move a heavy object and a light object. Imagine you want to move them at the same speed. You will need to use a larger force to move the heavy object.
Look for the box that is heavier.
A box holding 44 pounds is heavier than a box holding 38 pounds. So, the box holding 44 pounds needs a larger force to start moving upward at the same speed as the other box.