Distance, Speed, Time
Laws of Motion & Forces
Acceleration
Energy
Waves
100
What is the formula for speed?
"Distance"/ "Time"
100
I accelerate a 3 kg object at 3 m/s2. How much force am I applying?
F=ma " so " 3*3=9 N
100
A plane is traveling north at 500 knots. It then turns and heads west at 500 knots, did the plane accelerate? Why or why not.
Yes.
100
In this image, which position has the highest kinetic energy?
Position 3
100
The red line in this image shows which part of the wave?
The wavelength
200
What is the formula for time?
"Distance"/"speed"="Time"
200
Which law of motion is at work in the following scenario?
I have to push twice as hard on a shopping cart if I want to double its acceleration.
Newton's second law of motion.
200
True or False: Acceleration occurs when an object slows down.
True.
200
A rock has a weight of 10 N and is held 4 meters off the ground. what is the rock’s gravitational potential energy in joules?
Remember,
GPE="Height"*"Weight"
10*4=40J
200
The red line in this image shows which part of the wave?
The amplitude.
300
How do you find total distance using time and speed?
"Distance"="Speed"*"Time"
300
Which law of motion is at work in the following scenario?
When a roller coaster suddenly accelerates, I feel myself get pushed back into my seat.
Newton's first law of motion.
300
What is the formula for acceleration?
"Acceleration" = ("Final Speed" - "Initial Speed") /"Time"
300
Which type of energy is defined as the total kinetic and potential energy of all the particles of an object?
Thermal Energy
300
Which type of wave transmits electromagnetic energy from one point to another?
Light Waves.
400
A car traveled at exactly 80 miles per hour for 3 hours. How far did it travel?
"Distance" = "Speed" * "Time" " so " 80*3=240" miles"
400
Which law of motion is at work in the following scenario?
A bird flies by having its wings push down on air particles and the air pushes up on the bird’s wing, creating lift.
Newton's third law of motion.
400
I am traveling at 7 m/s before I realize I am late. Over the next 10 seconds, I increase my speed to 37 m/s. Calculate my acceleration.
I am accelerating at 3m/s2
400
Which type of energy is defined as the potential energy stored in the nucleus of an atom?
Nuclear Energy
400
A sound wave has a high amplitude. Describe the sound it will make. (Loud or soft?)
The sound will be loud.
500
What's the speed of a car if it moves 60 meters in 15 seconds?
"Speed" = "Distance"/"Time" " so " 60/15="4 m/s"
500
The tendency of an object to resist a change in motion is known as:
Inertia
500
A car approaching a stop sign accelerates at -4 m/s2. Explain what this means.
This means that every second the car travels, it slows down by 4 m/s.
500
If a motorcycle has a mass of 100 kg and is traveling at 20 m/s, what is its kinetic energy in joules?
Remember,
KE=1/2("Mass")*("Speed"^2)
KE=1/2("Mass")*("Speed"^2) " so " 1/2("100")*("20"^2)=20,000J
500
Which color absorbs the least amount of light? In fact, it reflects all light that hits it.
White.