Practice: Newton's Laws of Motion

As the fuel in the rocket ignites, the force of the gas expansion and explosion pushes out the bottom of the rocket and pushes the rocket upwards.

• 1st Law

  (Law of Inertia)

• 2nd law

  (F = ma)

• 3rd Law

  (Equal & Opposite Action/Reaction)

When you are standing up in a subway train, and the train suddenly stops, your body continues to go forward.

• 1st Law

  (Law of Inertia)

• 2nd law

  (F = ma)

• 3rd Law

  (Equal & Opposite Action/Reaction)

Tags

NGSS.MS-PS2-2

After you start up your dirt bike, as you give it more gas, it goes faster.

• 1st Law

  (Law of Inertia)

• 2nd law

  (F = ma)

• 3rd Law

  (Equal & Opposite Action/Reaction)

Tags

NGSS.MS-PS2-2

A pitched baseball goes faster than the one that is gently thrown.

• 1st Law

  (Law of Inertia)

• 2nd law

  (F = ma)

• 3rd Law

  (Equal & Opposite Action/Reaction)

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A swimmer pushes water back with her arms, but her body moves forward.

• 1st Law

  (Law of Inertia)

• 2nd law

  (F = ma)

• 3rd Law

  (Equal & Opposite Action/Reaction)

Tags

NGSS.MS-PS3-5

As an ice skater pushes harder with his leg muscles, he begins to move faster.

• 1st Law

  (Law of Inertia)

• 2nd law

  (F = ma)

• 3rd Law

  (Equal & Opposite Action/Reaction)

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When Bobby, age 5, and his dad are skipping pebbles on the pond, the pebbles that his dad throws goes farther and faster than Bobby’s pebbles.

• 1st Law

  (Law of Inertia)

• 2nd law

  (F = ma)

• 3rd Law

  (Equal & Opposite Action/Reaction)

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When you paddle a canoe, the water is pushed backward, and the canoe moves forward.

• 1st Law

  (Law of Inertia)

• 2nd law

  (F = ma)

• 3rd Law

  (Equal & Opposite Action/Reaction)

Tags

NGSS.MS-PS2-1

A little girl who has been pulling a sled behind her in the snow is crying because when she stopped to tie on her hat, the sled kept moving forward and hit her in the back of her leg.

• 1st Law

  (Law of Inertia)

• 2nd law

  (F = ma)

• 3rd Law

  (Equal & Opposite Action/Reaction)

A man leaves his car parked outside his house. No force acts on the car. The next day, the car is still there.

• 1st Law

  (Law of Inertia)

• 2nd law

  (F = ma)

• 3rd Law

  (Equal & Opposite Action/Reaction)

Tags

NGSS.HS-PS2-2