Physics Final Exam Review

Before beginning a lab, students with long hair should —

• comb or brush their hair

• tie their hair back

• ask their physics teacher what to do

• ask their lab partner to do the work

Eating in the laboratory —

• is permitted if it was purchased in the cafeteria

• is permitted if the lab experiment does not involve chemicals

• is not permitted

• is permitted as soon as the lab experiment is finished

Gravitational potential energy depends on the ________ and ________ of the object.

(a)  

• Height and mass
• Weight and volume
• Speed and acceleration

Tags

NGSS.HS-PS2-4

Why is the first stage of a large roller coaster (which usually takes the riders up a large incline) assisted by a chain under the roller coaster carts?

• To build suspense, there is no scientific reason

• To build kinetic energy since the ride is starting from rest

• To build potential energy which will be turned into kinetic energy throughout the majority of the ride

• To build elastic potential energy which will be transformed throughout the ride

Tags

NGSS.HS-PS3-2

The drawing below represents a roller coaster car at various positions on the track. At which of these positions on the track did the roller coaster have the most potential energy?

• A

• B

• C

• D

A 0.40 kilogram bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic energy?

• A: 3.2 J

• B: 2.0 J

• C: 4.2 J

• D: 12.8 J

Tags

NGSS.HS-PS3-2

What kind of energy is in a rock at the edge of a cliff?

• potential

• kinetic

• both

• neither

Tags

NGSS.MS-PS3-2

The equation for gravitational potential energy is

• PE_g = 1/2kx^2

• PE_g = Fd

• PE_g = mgh

• PE_g = 1/2mv^2

Dogs have the ability to hear sounds up to 40,000 Hz. If the speed of sound is 340 m/s, what is the most extreme wavelength dogs can detect?

• 8.5 x 10^-3 m

• 1.2 x 10^-2 m

• 2.0 x 10^-4 m

• 1.4 x 10^-7 m

Tags

NGSS.HS-PS4-1

What is the wavelength of a light wave that travels at a speed of 3.0 x 10^8 m/s and has a frequency of 1.5 x 10^16 Hz?

• A) 2.0 x 10^-8 m

• B) 5.0 x 10^7 m

• C) 2.0 x 10^8 m

• D) 6.0 x 10^24 m

Tags

NGSS.HS-PS4-1