1%
It was processed successfully!
It was processed successfully!

# Newton’s 1st Law Of Motion Definition

Newton's 1st Law of Motion states that an object's motion won't change unless acted upon by a force. For example, a moving object continues straight unless a force alters its path.

Grades 6-8 VideoNewton’s Laws of Motion
Preview Only
Oops! It looks like your security settings are blocking this video 🙁

If you are on a school computer or network, ask your tech person to whitelist these URLs:
*.wistia.com, fast.wistia.com, fast.wistia.net, embedwistia-a.akamaihd.net

Sometimes a simple refresh solves this issue. If you need further help, contact us.

## Newton’s Laws of Motion

### Fun Facts

• A still ball remains still until kicked.
• A rolling rock continues unless it hits a tree.
• Newton's 1st law of motion is sometimes called the law of inertia.

### Why Do We Need To Know About Newton's 1st Law Of Motion

Learning about Newton’s 1st law of motion helps us understand why things move or don’t move. Engineers use this knowledge to make sure things like cars, buildings, and bridges work correctly and safely under different conditions.

This law is also really important for making cars safer. For example, engineers use it to design safety features like airbags and areas in cars that can crumple in a crash. These features help keep people safe by managing the forces involved when a car stops quickly or crashes.

Newton’s first law of motion states that an object's motion remains the same unless a force acts upon it. What would be an example of this law in action?
If a ball is still, it will remain still until a force, such as a kick, makes it move.
Newton’s second law of motion states that larger things need more force to move them than lighter things. What would be an example of this law in action?
One example is pushing a car or pushing a shopping cart. You would need much more force to push a car the same distance as a shopping cart.
Why do people need to know about Newton’s Laws of Motion?
Newton’s laws of motion are helpful when making predictions of motion. This might be important if you were trying to step off a boat onto a dock. If you push off the boat, it will move away from the dock a little, which would be important to know if you don’t want to end up in the water.
Explore More Science Topics
Special Bonus: Get a \$5 Amazon gift card within 1 day if you join now. Only left.
X
Success
We’ve sent you an email with instructions how to reset your password.
Ok
x
3 Days

Continue to Lessons
30 Days

Get 30 days free by inviting other teachers to try it too.

Share with Teachers
Get 30 Days Free
By inviting 4 other teachers to try it too.
4 required

*only school emails accepted.

Skip, I will use a 3 day free trial

Thank You!

Enjoy your free 30 days trial