force and motion

What is a force?

• a push or pull

• speed or acceleration

• potential or kinetic energy

• balanced or unbalanced force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

When objects remain in the same place, forces acting upon that object

• have no gravity

• have friction

• are in balance

• are unbalanced

Tags

NGSS.3-PS2-1

Speed can be found by calculating...

• acceleration/velocity

• friction/gravity

• momentum/time

• distance/time

Tags

NGSS.MS-PS3-1

What is the force that causes everything to be pulled down toward the center of the Earth?

• friction

• gravity

• balanced

• unbalanced

Tags

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Force is measured in....

• Galileos

• Newtons

• Di Vincis

• Einsteins

An unbalanced force is when objects move in one direction because the force is greater from that direction.

• true

• false

Tags

NGSS.MS-PS2-2

When an object changes speed (slows down or speeds up) or direction (turns) or both, it is called ___________.

• potential energy

• kinetic energy

• acceleration

• deceleration

Newtons first law of motion describes inertia which states ...

• for every action, there is an equal and opposite reaction

• larger objects take more force to move

• an object in motion tends to stay in motion unless acted upon by an outside force and an object at rest stays at rest unless acted upon by an outside force.

• a push that acts in the opposite direction and it slows down.

Friction makes it easier to move objects.

• true

• false

John walks at 5 km in 10 minutes. If John walks 10 km at the same speed, what is the BEST estimate of the time this will take?

• 5 minutes

• 10 minutes

• 15 minutes

• 20 minutes