crowbar

Everyday

1. A crowbar is a long, heavy metal bar with a flat or bent end, used to lift or force things open. tree →
2. It works as a lever, so a small push gives a big force. tree →

In the lessons

In science lessons a crowbar is a good example of a lever: with a pivot near the load, a small push on the long end lifts something heavy. In everyday life builders use crowbars to pull out nails or lift boards. In stories burglars or rescuers may use a crowbar to force a door open. Phrases: «prise open with a crowbar», «a crowbar and a hammer».

Examples

• The builder used a crowbar to lift the old floorboards. tree →
• He forced the stuck lid open with a crowbar. tree →
• A crowbar is a kind of lever. tree →
• The longer the crowbar, the easier it is to lift the stone. tree →
• Firefighters used a crowbar to open the jammed door. tree →
• Dad pulled out the rusty nails with a crowbar. tree →
• Crowbars are very heavy. tree →
• The thief left a crowbar behind. tree →
• When the people outside found that the door was not opened to them, they took crowbars and forced the portal. tree →

Note

Countable, one word. Also called a «jemmy» (UK) or «pry bar» (US). Safety: a crowbar is a heavy tool for adults; it can slip and hurt. In lever problems, the longer the distance from the pivot, the less force you need.