Show:
Acids,bases,and solutions
motion
Forces
Work and machines
Energy
100
Which of the following is an example of a solution? 
A.fog
100
What is the SI unit of distance 
millimeters
100
When a nonzero net force acts on an object, the force 
c.does not change the motion of the object 
100
The amount of work done on an object is found by multiplying 
Force time distance 
100
When you stretch a rubber band, you give it? 
A Kinetic energy 
200
A mixture of pepper and water is a suspension because 
only salt can dissolve in water  
200
A change in position with respect to a reference point is 
An object is in motion if it changes position with respect to a reference point 
200
The SI unit of force is the 
newton
200
one way a machine can make work easier is by 
Reducing force 
200
What is the energy stored in the nucleus of an atom called? 
D. Nuclear energy 
300
How can you increase the concentration of a solution? 
D.decrease pressure 
300
What quantity can you calculate if you know that a car travels 30 kilometers in 20 minutes 
C. Velocity 
300
Friction always acts 
B. opposite the direction of motion 
300
if none of the force on an object is in the direction of the object;s motion, 
no work is done 
300
An object's mechanical energy is the sum of its? 
Kinetic energy
400
kilograms/grams 
unit for mass
400
The rate at which velocity changes is 
A.Acceleration 
400
Which's of Newtons laws of motion is also called the law of inertia? 
A. first
400
what is the comparison between output work and input work 
Efficiency 
400
as a car skids to a stop,friction transforms kinetic energy to 
d.electrical energy 
500
Explain the law of conservation of momentum  
The law of conservation of momentum tells us that you can't just lose momentum 
500
A place or object used for comparison to determine if an object is in motion. 
Reference Point 
500
Newtons second law states that force is equal to 
the net force that is the same direction 
500
A machine can make work easier by 
changing the direction 
500
To calculate power, divide the amount of energy transferred by 
Electrical energy