Fun Friday 15 January 2021- Barnes

Fun Friday 15 January 2021 - Mr. Barnes, Science Classes.

Poll

HOW ARE YOU DOING TODAY?

• NOT GOOD

• COULD BE BETTER

• YEA, IT'S THE WEEKEND

• GOOD

Multiple Choice

Which of the following lists the electromagnetic waves in order of increasing wavelength?

• X-rays, visible light, radio waves

• gamma rays, microwaves, UV rays

• infrared rays, radio waves, x-rays

Multiple Choice

Which electromagnetic waves help doctors detect broken bones inside your body?

• gamma rays

• x-rays

• ultraviolet rays

Multiple Choice

Which of the following has frequencies higher than ultraviolet rays?

• visible light
• infrared rays
• x-rays

Multiple Choice

The electromagnetic spectrum includes the complete range of electromagnetic waves placed in order of:

• increasing amplitutde
• increasing wavelength
• increasing frequency

Multiple Choice

Which of the following has wavelengths longer than microwaves?

• Infrared waves

• Radio waves

• Visible light

Multiple Choice

How much of the electromagnetic spectrum is made up of visible light?

• only a small portion

• a very l;arge portion

• about half

Multiple Choice

For waves in any medium, as the wavelength decreases, what happens to the frequency?

• It also decrease

• It stays the same

• It increases

Multiple Choice

Electromagnetic waves that help your body produce vitamin D are called?

• ultraviolet rays

• x-rays

• gamma rays

Multiple Choice

Which type of waves are used in broadcasting?

• radio waves

• infrared rays

• x-rays

Multiple Choice

Which electromagnetic waves are used in ovens and cell phone communications?

• Infrared rays

• ultraviolet rays

• microwaves

Multiple Choice

Which electromagnetic waves have the highest frequencies and the shortest wavelengths?

• microwaves

• visible light

• gamma rays

Multiple Choice

The lower the frequency the ______ the energy.

• higher

• lower

• neither, stays the same

Multiple Choice

The higher the frequency the ______ the energy.

• higher

• lower

• neither, stays the same

Multiple Choice

An open cart on a level surface is rolling without frictional loss through a vertical downpour of rain. As the cart rolls, an appreciable amount of rainwater accumulates in the cart. The speed of the cart will

• increase because of conservation of mechanical energy

• decrease because of conservation of momentum

• decrease because of conservation of mechanical energy

• remain the same because the raindrops are falling perpendicular to the direction of the cart's motion

Multiple Choice

When the speed of an object is doubled, its momentum

• remains unchanged in accord with the conservation of momentum.

• doubles

• quadruples

• decreases

Multiple Choice

What is Newton's Third Law?

• Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force

• Force = mass x acceleration

• For every action there is an equal and opposite reaction

Multiple Choice

The definition of momentum is

• Mass in Motion

• The size of an object

• The velocity of an object

• A comparison between two objects

Multiple Choice

The momentum of an object depends upon the object's ___________&_____________.

• size and shape

• mass and speed

• mass and veloctiy

• mass and energy

Multiple Choice

Which of these is a GREAT example of inertia?

• a person flying through the windshield during a car wreck because they weren't wearing their seat belt

• a person staying in the vehicle and hitting the air bag during a car wreck because they are wearing a seat belt

• earth constantly traveling at the same speed in it's orbit

• a meteor traveling through space at a constant speed until it hits something

• All of the above

Multiple Choice

Complete the excerpt of Newton's First Law of Motion

"An object in motion will ________ until it is acted on by an unbalanced force."

• ...stay in motion...

• ...stop its motion...

• ...increase its motion...

• ...decrease its motion...

Multiple Choice

Objects with more mass are..

• harder to speed up or slow down

• easier to speed up or slow down

Multiple Choice

Objects with MORE mass have...

• MORE inertia

• LESS inertia

• the SAME amount of intertia

Multiple Choice

Inertia is Newton's _______ Law of Motion.

• First

• Second

• Third

Multiple Choice

What is a Force?

• The distance

• Mass

• A push or pull

• Give me a failing grade

Multiple Choice

The unit of force is

• m/s

• m/s^2

• newton

• kg

Multiple Choice

If these teams are pulling with the same amount of force what will happen?

• The boy in blue will win.

• They will not move at all.

• The boy in red will win.

• Both will fall down.

Multiple Choice

Which example would be a balanced force?

• Train moving at a constant speed in the same direction.

• A skier going down a hill.

• A basketball being passed to a teammate.

• An apple falling to the floor.

Multiple Choice

When forces are _________ the object DOES NOT move.

• unbalanced

• balanced

• heavy

• light

Multiple Choice

What is the unit to MEASURE force?

• Kilogram

• Meter

• Pounds

• Newton

Multiple Choice

What will cause an object to move?

• Applied forces

• Balanced forces

• Unbalanced forces