BJHS Science Sem1
Help!
|
|
||||
|---|---|---|---|---|---|
| The bending of light rays as they enter a new medium is called | refraction
🗑
|
||||
| To determine the acceleration rate of an object, you must calculate the change in speed during each unit of | time
🗑
|
||||
| Speed equals distance divided by | time
🗑
|
||||
| The SI (metric) unit for force is the | Newton
🗑
|
||||
| A place or object used for comparison to determine if something is in motion is called | a reference point
🗑
|
||||
| If you know the distance an object has traveled in a certain amount of time, you can determine | the speed of the object
🗑
|
||||
| Air resistance is a type of | friction
🗑
|
||||
| Which term refers to how high or low a sound seems to a person? | pitch
🗑
|
||||
| The tendency of an object to resist change in its motion is known as | inertia
🗑
|
||||
| When an object’s distance from another object is changing, | it is in motion.
🗑
|
||||
| Forces can be added together only if they are | acting on the same object
🗑
|
||||
| The amount of matter in an object is called its | mass
🗑
|
||||
| Waves that move the particles of the medium parallel to the direction in which the waves are traveling are called |
longitudinal waves.
🗑
|
||||
| When the surface of a mirror curves inward, like the inside of a bowl, it is called a | concave
🗑
|
||||
| If speed is measured in kilometers per hour and time is measured in hours, the unit of acceleration is | kilometers per hour per hour
🗑
|
||||
| In an acceleration graph showing speed versus time, a straight line shows the acceleration is | constant
🗑
|
||||
| Sound is a disturbance that travels through a medium as a | longitudinal wave
🗑
|
||||
| Frequency is measured in units called | Hertz
🗑
|
||||
| According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail, the nail | exerts an equal force back on the hammer
🗑
|
||||
| What color would a tomato look under blue light? | black
🗑
|
||||
| What happens when light passes from air into water? | The light slows down
🗑
|
||||
| The rate at which velocity changes is called | acceleration
🗑
|
||||
| In physical science, a push or a pull is called a(n) | force
🗑
|
||||
| The maximum distance that the particles of a medium move from the rest position is the | amplitude of the wave
🗑
|
||||
| One way to increase acceleration is by | decreasing mass (or increase force)
🗑
|
||||
| The primary colors of light are | red, green, and blue
🗑
|
||||
| You can hear sounds from around corners because of | diffraction
🗑
|
||||
| When you know both the speed and direction of an object’s motion, you know the | velocity of the object
🗑
|
||||
| What occurs when vibrations traveling through an object match the object’s natural frequency? | resonance
🗑
|
||||
| Changing direction is an example of a kind of | acceleration
🗑
|
||||
| The achievement of lifting a rocket off the ground and into space can be explained by | Newton's Third Law- For every action, there is an equal and opposite reaction.
🗑
|
||||
| The electromagnetic waves with the highest frequencies are called | gamma rays
🗑
|
||||
| Loudness, or sound level, is measured in units called | decibels
🗑
|
||||
| What happens when parallel rays of light hit a smooth surface? | regular reflection
🗑
|
||||
| The bending of waves due to a change in speed is called | refraction
🗑
|
||||
| The product of an object’s mass and velocity is called its | momentum
🗑
|
||||
| What do some bats use to locate food and to navigate? | echolocation
🗑
|
||||
| Which of the following is the correct equation for acceleration? | final speed - initial speed
/
time
🗑
|
||||
| Electromagnetic waves can transfer energy without a(n) | medium
🗑
|
||||
| This is an example of increasing friction intentionally. | throwing sand on an icy driveway
🗑
|
||||
| You can show the motion of an object on a line graph in which you plot distance against | time
🗑
|
||||
| What is transferred by electromagnetic waves? | electromagnetic radiation
🗑
|
||||
| The speed of a wave is its wavelength multiplied by its | frequency
🗑
|
||||
| What is an example of exerting a force? | hammering a nail, pulling a rope, slapping a table are all examples of exerting force
🗑
|
||||
| A curved piece of glass or other transparent material that is used to refract light is called a(n) | lens
🗑
|
||||
| What is required for a rocket to lift off into space? | thrust that is greater than Earth’s gravity
🗑
|
||||
| If the speed of an object does NOT change, the object is traveling at a | constant speed
🗑
|
||||
| The range of electromagnetic waves placed in a certain order is called the | electromagnetic spectrum
🗑
|
||||
| What happens when two forces act in the same direction? | They add together
🗑
|
||||
| Average speed is calculated by dividing | the total distance traveled by the total time
🗑
|
||||
| The force that one surface exerts on another when the two rub against each other is called | friction
🗑
|
||||
| On a graph showing distance versus time, a horizontal line represents an object that is | not moving at all.
🗑
|
||||
| When a wave hits a surface through which it CANNOT pass and bounces back, it undergoes | reflection
🗑
|
||||
| Mechanical waves are created when a source of energy causes a medium to | vibrate
🗑
|
||||
| The changing pitch of a police car’s siren as it moves by you is an example of | the Doppler effect
🗑
|
||||
| The interaction between two waves that meet is called | interference
🗑
|
||||
| Refraction occurs when a wave | enters a new medium at an angle
🗑
|
||||
| The distance between two corresponding parts of a wave is the wave’s | wavelength
🗑
|
||||
| The pitch of a sound that you hear depends on the sound wave’s | frequency
🗑
|
||||
| The moon accelerates because it is | continuously changing direction
🗑
|
||||
| If a bicyclist travels 30 kilometers in two hours, her average speed is | 15 km/h
🗑
|
||||
| Which waves have some electrical properties and some magnetic properties? | electromagnetic waves
🗑
|
||||
| If you know a car traveled 300 kilometers in 3 hours, you can find its | average speed
🗑
|
||||
| The bending of waves around the edge of a barrier is known as | diffraction
🗑
|
||||
| A disturbance that transfers energy from place to place is called a | wave
🗑
|
||||
| Objects falling through air experience a type of friction called | air resistance
🗑
|
||||
| Doctors are able to make sonograms through the use of | ultrasound
🗑
|
||||
| The highest parts of a transverse wave are called | crests
🗑
|
||||
| Any force that causes an object to move in a circle is called a(n) | centripetal force
🗑
|
||||
| How can you increase the momentum of an object? | by increasing its mass
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
Ms. Traynor-Grimes (Ms.TG)
Popular Physical Science sets