Qtr 3 Physics review

__________ law of motion states that an object at rest will remain at rest and an object in motion will stay in motion unless it is acted on by an unbalanced force.

• Newton's 1st Law of motion

• Newton's 2nd Law of motion

• Newton's 3rd Law of motion

• Newton's 4th Law of motion

Inertia causes a resting object to remain at rest and a moving object to remain in motion unless a(n) _______-force acts on the object.

• balanced

• unbalanced

• None

• static

Tags

NGSS.HS-PS2-1

The force of _____ opposes the motion of all moving objects.

• inertia

• friction

• resistance

• whiplash

For a given net force, an object will accelerate less if it has a greater

• mass

• volume

• speed

• none

Tags

NGSS.MS-PS2-2

What is the SI unit for Force?

• Mass

• Gram

• Newton

• Meter

When a bat strikes a ball, the force exerted can send the bat backwards. The force exerted on the bat is due to Newton’s ____________________ law.

• 1st

• 2nd

• 3rd

• best

Tags

NGSS.MS-PS2-1

Work equals force multiplied by _____.

• time

• distance

• mass

• weight

If a microwave does 3000 J of work in 3 seconds, its power is

• 3300 W

• 2700 W

• 9000 W

• 1000 W

The ____________________ of a machine is the percent of input work that becomes output work.

• efficiency

• mechanical advantage

• input force

• work

Tags

NGSS.MS-PS3-5

NGSS.MS-ETS1-1

Which of the following machines includes a wedge?

• axe

• hammer

• file

• bolt