Speed is the ratio of the distance an object moves to
What is the time it takes for the object to move that distance.
100
The study of Earth’s composition, structure, and history is called
What is geology.
100
The distance between stars is typically measured in
What is light years.
100
Convert 6 centimeters to millimeters.
What is 60 ml.
100
What are the building blocks of all matter?
What is atoms
200
A distance-time graph indicates that an object moves 100 m in 4 s and then remains at rest for 6 s. What is the average speed of the object?
What is 10 m/s.
200
In the water cycle, the process that changes a liquid into a gas is called
What is evaporation.
200
The life cycle of a star begins with a cloud of gas and dust called a
What is a nebula.
200
One kilometer equals 1000 meters. What does the prefix kilo- mean?
What is 1000.
200
How is 0.00069 written in scientific notation?
What is 6.9 x 10 ^-4
300
A person walks 1 mile every day for exercise, leaving her front porch at 9:00 am. and returning to her front porch at 9:25 am. What is the total displacement of her daily walk?
What is zero.
300
A steep-sided volcano formed entirely of ash and cinders is a
What is a cinder cone.
300
Astronomers classify stars according to what three things
What is color, size, brightness.
300
A car traveled 60 km in 2 hr , 84 km in the next 1 hr , and then 68 km in 2 hrs before reaching its destination. What was the car’s average speed?
What is 42 km/hr.
300
How do scientists who speak different languages make their data understandable to one another?
What is SI units of measurement
400
A ball is rolled uphill a distance of 5 meters before it slows, stops, and begins to roll back. The ball rolls downhill 9 meters before coming to rest against a tree. What is the magnitude of the ball’s displacement?
What is 4 meters.
400
A naturally occurring, inorganic solid with a crystal structure and a characteristic chemical composition is a
What is a mineral.
400
This graphs a sample of stars according to surface temperature and absolute brightness.
What is an H-R diagram.
400
There are 1660 megawatts of wind-generated electricity produced globally every year. This amount is equivalent to how many kilowatts?
What is 1.66 million.
400
The rate at which velocity changes is called
What is acceleration
500
An object moving at 30 m/s takes 5 s to come to a stop. What is the object’s acceleration?
What is -6 m/s^2
500
The sun’s energy is produced by
What is nuclear fusion.
500
Low-mass and medium-mass stars eventually
What is a white dwarf.
500
Displacement vectors of 4 km south, 2 km north, 5 km south, and 5 km north combine to a total displacement of
What is 2 km south.
500
Which universal force acts only on the protons and neutrons in a nucleus?