Forces and Motion

This person bought coffee and put it on the seat next to them. If they stopped quickly and the coffee spilled which law would that represent?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

Tags

NGSS.MS-PS2-2

Balanced forces do not change the objects speed or ___________

• direction

• distance

• time

• mass

Which one is balanced?

• top

• bottom

• both

Tags

NGSS.MS-PS2-2

Name the missing force...

• weight force

• normal force

• applied force

• frictional force

Tags

NGSS.MS-PS2-4

A contact force is from

• objects physically touching

• far apart objects

• not touching object

• always a pull

What forces are acting on a bowling ball that is rolling down the lane?

• gravity and friction

• applied force, normal force, gravity, and friction

• gravity

• normal force and gravity

Tags

NGSS.MS-PS2-2

An object in motion stays in motion, and an object at rest stays at rest unless acted on by an external force

• Law of Inertia

• Law of Acceleration

• Law of Action-Reaction

Which of the following is the best example of Newton's Law of Inertia (Law 1)?

• A car hitting a wall versus a plane hitting a wall

• A bird pushing it's wings down and the air pushing back up on the bird.

• A boy riding on a bike and flying over the handlebars when he hits a rock

• A person sitting in a chair

A contact force that resists the sliding motion between two objects that are touching.

• friction

• normal force

• non-contact force

• gravity

As mass of two objects increases, gravity...

• Decreases

• Increases

• Stays the same

Tags

NGSS.MS-PS2-4