Physics Middle School

Rougher surfaces have ...

• greater friction

• less friction

• the same level of friction

Why is person B having a hard time moving down the hill?

• Person B has more friction than person A.

• Person B has the same friction as person A.

• Person B is out of shape.

• Person B has less friction has person A.

This is an example of what kind of force?

• Balanced Force

• Pushing Force

• Gravity Force

• Unbalanced Force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is motion?

• It's like the ocean

• Any change in an animal or person's position.

• Motion is like acting

• Any change in an object or person's position.

Tags

NGSS.MS-PS3-1

A greater applied force is required to move an object with a greater mass than one with a smaller mass.

• True

• False

Tags

NGSS.MS-PS2-2

Would a spring scale measure more force pulling an object across carpet, wood, or sandpaper?

• Carpet

• Wood

• Sandpaper

A cyclist traveling at 25 km/hr turns sharply to the left while continuing to move 25 km/hr. This means the forces involved are_____________________.

• Balanced, because the cyclist's speed did not change.

• Balanced, because he was still moving forward.

• Unbalanced, because it's the same bicycle.

• Unbalanced, because his direction changed.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The forces represented by the arrows in the diagrams are applied to the four objects that are at rest on a table. Which object is most likely to move to the right?

• Object W

• Object X

• Object Y

• Object Z

Tags

NGSS.MS-PS2-2

If a force does not cause an object to move, it's considered a(n) __________________ force.

• Balanced

• Unbalanced

• Wimpy

• Weak

Tags

NGSS.MS-PS2-2

The energy of motion.

• Potential Energy

• Kinetic Energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5