- Drag and drop the vocabulary words to their definitions.
- A pole on which wheels can turn: axle
- A type of ramp allowing something to be pushed up or down to different height: inclined plane
- A bar or plank moved back and forth to move an object: lever
- Two inclined planes set back in order to form a point: wedge
- A wheel that uses rope to lift objects without using an axle: pulley
- Choose the best answer.
About 1,400 years ago, people in ___ came up with a number system. India
- Choose the best answer.
A _____ is an amount or numbers. quantity
- Choose the best answer.
____ are work-saving devices that make work easier. Simple machines
- Choose the best answer.
A(n) _____ is an inclined plane wrapped around a middle point. spiral
- Choose the best answer.
Ancient Romans used ______ instead of numbers. letters
- Choose the best answer.
In early communities, a(n) "_____" was the length of an adult arm. foot
- Match the simple machines.
- Person holding a long rod wedged between two stones trying to lift one: lever
- Lady pushing a hand truck down a ramp on a truck: inclined plane
- Man pulling a rope to lift a bale of hay: pulley
- Round object with a pole through the middle: axle
- Choose the best answer.
How many centimeters are in 4 inches? Given that 1 inch = 2.5 centimeters, therefore: 4 inches = 4 * 2.5 = 10 centimeters. 10
- Choose the best answer.
How many gallons are in 3.785 liters? Given that 1 gallon = 3.785 liters, therefore: 3.785 liters = 1 gallon. 1
1 answer