SVA
Waves
Forces
Energy
Random
100
A car travels 120 kilometers in 2 hours.
What is the car’s average speed in kilometers per hour?
60 km/h
100
In the diagram, the wave is moving from left to right.
Determine how the water under the boat is moving?
Up and Down
100
What is the standard unit of force?
Newtons
100
What is the definition of useful energy?
Output energy that is put into its intended use.
100
Identify 2 non contact forces
Gravity and Magnetism
200
What is the definition of velocity?
Speed with direction
200
Scientists use the terms wavelength and amplitude to describe the shape of a wave.
Which is wavelength and which is amplitude?
A: Amplitude
B: Wave length
200
What is the force formula?
Force = Mass X Acceleration
200
What is the standard unit of speed?
m/s
200
A lion chasing a zebra sprints 200 meters in 10 seconds. Calculate the lion's average speed.
20 m/s
300
A skateboarder travels 90 meters west in 15 seconds.
What is the skateboarder’s velocity?
6m/s west
300
While watching a rainbow, a person observes the Sun slowly set over the horizon. They notice the brightness of light around them gradually change. They draw two waves to represent the brightness of light at different times.
Which light wave was the brightest?
6:00 pm or 7:00 pm
6:00 pm
300
If two people are pushing on an object, and it moves, is the object experiencing balanced or unbalanced forces?
Why?
Unbalanced due to the object moving, if they were balanced no movement would occur.
300
What is the scientific definition of energy.
The ability to do work.
300
You bowl a ball at a bowling alley.
Determine the type of force that pushes the ball forward as you release it.
Applied
400
A car travels 120 kilometers in 2 hours.
What is the car’s average speed in kilometers per hour?
60 km/h
400
In a sound wave, what does the amplitude affect?
How loud the sound is
400
Which direction would this bird be moving?
The the right
400
Select the object which has the most kinetic energy due to its speed. Assume all the marbles have the same mass.
A marble sitting on the ground
A marble rolling at a speed of 5 m/s
A marble that's been thrown at 8 m/s
A marble that's been thrown at 8 m/s
400
Recall which property of light can be explained by the amplitude of a light wave.
The brightness
500
A skateboarder’s velocity changes from -2 m/s to 4 m/s in 3 seconds.
What is the skateboarder’s acceleration?
2 m/s/s
500
Calculate the net force on the trolley in the tug-of-war shown on the left.
50 N to the right
500
Identify which two of the following have balanced forces acting on them.
1. A skateboarder speeding up as they ride down a hill
2. A car turning a corner
3. Shoes resting on a shoe rack
4. A car traveling at a constant speed
Shoes resting on a shoe rack
A car traveling at a constant speed
500
A ball is on the ground, motionless. You kick the ball into the air.
Describe one energy transfer involved.
Describe one energy transformation involved.
1. An energy transfer would be like the kinetic energy transferring from my foot to the ball
2. An energy transformation would be like the ball going from kinetic to potential when it goes up in the air
500
The 1979 sci-fi movie Alien had the tagline: "In space, no one can hear you scream".
If we take "space" to mean empty space, explain whether this statement is scientifically accurate.
Sound waves need matter to travel on, which space has none of.