Science and Measurement
Motion
Forces
Newton's Laws
100

What is the process of learning that begins with a hypothesis and leads to a conclusion supported by scientific evidence?

Scientific Method

100
What is the term used to describe an object descending toward earth affected only by gravity? 

Free fall

100

What is the definition of a newton?

The force required to accelerate a 1kg mass 1m/s/s

100
What happens to the inertia of an object if its mass is decreased? 

The inertia is decreased. 

200

What is are variables that are not allowed to change? 

Control variables

200

Speed with direction is called what?

Velocity

200

A pulling force carried by a rope is called what? 

Tension

200

What is an unbalanced force? 

A force that is able to cause change

300

Position and Speed are examples of what?

Variables 

300

What is the name of a position of 0?

The origin


300
What is the force that resists motion? What are the two types? 

Friction; static and sliding friction. 

300

The trait in massive things to resist changes in motion is called what? 

Inertia

400

Experimental variables that affect other experimental variables are called what?

Dependent variables

400

The rate at which velocity changes is called what? 

acceleration

400

The force that the legs of your chair exert on your body is called what? 

Normal Force


400

The relationship between the force on an object, the mass of the object, and its acceleration is described by what? 

Newton's second law

500

A pelican flies north at a speed of 52km/h for 0.25 hours. How many meters does the pelican fly? 

13km = 13,000 meters. 

500
Can an object have a an acceleration of zero and a speed of more than zero at the same time? 

YES! Constant speed. 

500

The sum of all forces acting on an object is called what? 

The net force. 

500

If the force exerted on two objects are equal, but the acceleration of each is different, what must you conclude about the masses of each? 

The masses are different. 

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