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What is the independent variable?
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What is the dependent variable?
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Science 9 Exam

QuestionAnswer
What is the independent variable? the variable that is purposely changed in an experiment
What is the dependent variable? the variable that is recorded in an experiment (what's in the data table?)
What is the controlling variable? the variable that is purposely kept the same in an experiment
How many sigfigs are in 0.0056700? 5
How many sigfigs are in 3450760? 6
A person always walks 1 mile every day for exercise, leaving her front porch at 9:00am and returnring to her front porch at 9:25am. What is her total displacement? A. 1 mile B. 0 C. 25 minutes D. none of the above B. 0
Displacement vectors of 4km S, 2km N, 5km S, and 5km N combine to a total displacement of A. 16 km N B. 11 km W C. 6 km S D. 2km S D. 2 km S
A speed-time graph shows that a car moves at 10m/s for 10s. The car's speed then decreases until it comes to a stop at 30s. Which of the following describes the slope of the speed-time graph from 10s to 30s? A. curved, up B. liner, sloping down B
The gravitational force between two objects increases as mass A. decreases or distance decreases B. decreases or distance decreases C. increases or distance decreases D. increases or distance increases C.
Which of the following is NOT an action/reaction force pair? A. the force between a bat and a ball B. the orce between a ball and the Earth C. the force of propulsion and the forcce of gravity on an airplane D. the force between grasshopper & ground C.
During a head-on collision, BLANK (1), causes a passenger to keep moving BLANK (2). BLANK (1): Inertia BLANK (2): forward
If a block has 5J of kineti energy, how much work did the force that acted on it do om the block? Why? 5J, work is the ability to do work so the values are equal
If no friction acts on a diver during a dive, which of the following is true? A. The total mechanical energy of the system increses B. PE can be converted into KE, but not vice versa. C. KE+PE(beginning) = KE+PE(end) D. all of the above C.
What is energy and work measured in? joules
As the temperature of an object rises, so does the A. kinetic energy B. mass C. thermal energy D. potential energy C. thermal energy
What three things does the amount of thermal energy depend on? mass, phase (solid, liquid, gas), temperature
Created by: alissaray19
 

 



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