We need ____ to make things move. A force can be a ____ or a ____. We can make things move faster, slower or even stop if the size of the force ____. Different ____ can also affect how forces act on moving things. If we imagine a box being pushed along a ____ floor compared to a ____ carpet, it would be easier to push than the rough carpet. To make an object move you need a ____ To make an object move you need ____ forces as one force needs to be ____ than the other. ____ is a force that ____ objects down and it can occur when an object moves through ____ or ____. ____ ____ is a type of friction between air and another material. Objects with a large surface area create more ____ ____ so they move more slowly through air. That is why skydivers use ____. ____ is the force that pulls something ____ A ____ and ____ object would travel through the air quicker as it would have less surface area. If a ____ and ____ object traveled through the air, it would experience more air resistance.

Science Forces - Missing Word

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