Free Printable Science: Ch. 9 Review

Worksheets

Science: Ch. 9 Review

Total questions: 30

Worksheet time: 15mins

Name

Class

Date

____ is the ability to make something move.

Mechanical energy

Motion

Chemical Energy

Inertia

A fixed unmoving object or location is ______.

potential energy

a joule

a reference point

effort force

____ is the change of an object's position.

Kenetic energy

Motion

Speed

Resistance

The ____ of an object is determined by its mass and velocity.

inertia

effort force

momentum

stored energy

____ occurs whenever an object speeds up, slows down, or changes direction.

Momentum

Inertia

Friction

Acceleration

The resistance to a change in motion is called______.

interia

friction

effort force

velocity

Choose the word that best describes the example. Henry usually runs about 7.5 miles per hour (mi/hr)

acceleration

distance

speed

velocity

Choose the word that best describes the example. On the day of the race, Henry ran along the track toward the east at 7.5 miles per hour(mi/hr)

acceleration

distance

speed

velocity

Choose the word that best describes the example. The runner at the front of the race suddenly stumbled over a piece of gravel. His speed slowed.

acceleration

distance

speed

velocity

10.

Choose the word that best describes the example. Henry increased his speed, passed the runner, and won the race.

acceleration

distance

speed

velocity

11.

The spot where a lever turns is called a fulcrum

true

false

12.

Force is measured in joules.

true

false

13.

The resistance force works against the effort

true

false

14.

A simple machine combines 2 or more machines to make work easier.

true

false

15.

Galileo is credited with formulating the 3 laws of motion we use today.

true

false

16.

A block and tackle combines multiple fixed and moveable pulleys

true

false

17.

Which unit is used to measure work?

newton

cubic centimeter

mile

joule

18.

What is the decrease in effort that is needed to move an object called?

mechanical advantage

work

resistance force

effort force

19.

Which machine is a bar that turns on a point?

pulley

lever

inclined plane

screw

20.

Which machine is an inclined plane wound around a cylinder or cone?

pulley

screw

wheel and axle

wedge

21.

Which machine consist of 2 inclined planes placed back to back?

wedge

pulley

wheel and axle

screw

22.

Which simple machine makes work easier by either changing the direction of the force or by reducing the amount of force needed to move an object?

wedge

screw

pulley

wheel and axle

23.

Which simple machine consists of a wheel with a rope or chain wrapped around it?

screw

wedge

pulley

lever

24.

The amount of matter in an object is called its ____.

density

mass

volume

weight

25.

Which simple machine consists of a wheel and a rod running through the wheel?

lever

screw

wheel and axle

pulley

26.

Which simple machine is used to split or cut objects apart?

lever

wedge

pulley

screw

27.

Which simple machine is used to hold objects together or lift them by turning?

pulley

wedge

screw

lever

28.

Which unit is used to measure force?

joule

newton

watt

pascal

29.

Which simple machine is used to lift heavy objects with less effort by using a rope and wheel?

Wedge

Lever

Inclined Plane

Pulley

30.

The tendency of an object to resist changes in its state of motion is known as ____.

Energy

Force

Momentum

Inertia

100 %

Science: Ch. 9 Review

Total questions: 30

Worksheet time: 15mins

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