According to newtons first law, an object in motion will stay in motion unless:

acted upon by an opposite force

Explanation:

if an object is in motion in one direction it will not move to a different direction unless acted on by a opposite force

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.