Forces & Motion
Directions. Write the force words that complete each sentence.
push
pull
gravity
friction
force
inertia
machine
energy
balance
Newton
1. The greater the
the easier the object will move.
2. To do the job in less time and with less energy, use a
3. That rock will roll down the hill due to the force of
4. To make something
same weight
both ends need to have the
5. It takes
to get a job done.
6.
is the idea that something in motion will remain in
motion, and something at rest will remain at rest, unless affected by an
outside source.
7. It would be more difficult to
wheels.
a wagon if it didn't have
on the rope, the box will be
8. If you have a few people
easier to move.
9.
's theories on motion are still believed correct today.
10. We added wheels to our bureau to create less
when we move it.
Answers
Answer: It's hard to believe, but everything in the world is in motion, all the time. Even things that look perfectly still are packed with atoms that are vibrating with energy. Understanding how motion works was one of the great milestones of science and it's credited to the brilliant English physicist Sir Isaac Newton. His laws of motion, written over 300 years ago, were so well stated that scientists still use them in most situations today. The basic idea Newton taught us is that motion is caused by forces—which is easy enough to understand: kick a ball (the force) and it flies into the air (the motion). But forces don't always make things move: a bridge has lots of forces acting on it, but it doesn't go anywhere. Also, the "motion" forces produce is sometimes a shift in the direction in which something is moving or a change in its shape. So what exactly are forces and how they do they produce these different kinds of motion? It's time to take a closer look at the science of moving things!
Explanation:
Answer:
1.Friction
2.Machine
3.Gravity
4.Balance
5.Energy
6.Inertia
7.Pull
8.Push
9.Newton
10.Friction
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