Physics SG- Final Exam Fall 2022

Objects move only when force is exerted.

• True

• False

Tags

NGSS.MS-PS2-2

Air resistance is caused by friction between the air and an object moving through the air.

• True

• False

The speed of an object dropped in air will continue to increase without limit until it strikes the ground.

• True

• False

Tags

NGSS.HS-PS2-1

If the force acting on a cart doubles, what happens to the cart's acceleration?

• it quadruples

• it doubles

• it halves

• it quarters

Tags

NGSS.MS-PS2-2

A girl whose weight is 200 N hangs from a bar supported by a rope. What is the tension on the rope?

• 400N

• 300N

• 200N

• 100N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A tennis ball and a solid steel ball the same size are dropped at the same time. IN the absence of air resistance, which ball has the greater acceleration?

• the tennis ball

• the steel ball

• they both have the same acceleration

Tags

NGSS.HS-PS2-1

Calculate the (potential energy) PE of a 2 Kg (M) cat perched 10 meters(h) above the ground. g = 10 m/ss

PE = M x g x h

• 20 J

• 200 J

• 2.00 J

• 2000 J

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy? 

• Both the potential energy and kinetic energy decrease
• The potential energy decreases while the kinetic energy increases 
• The kinetic energy decreases while the potential energy increases 
• Bothe the potential energy and kinetic energy increase 

Tags

NGSS.MS-PS3-5

While a boulder is on the top of a hill it has what type of energy? 

• Mechanical
• Kinetic
• Potential 
• Reactive 

Tags

NGSS.MS-PS3-2

speed =

• $\frac{ending\ \ time\ -\ starting\ \ time}{2}$

• $\frac{dis\tan ce}{time}$

• $\Delta t$

• distance x time

Tags

NGSS.MS-PS3-1