physics unit review trivia game. mass inertia is a measure of…
TRANSCRIPT
Physics Unit Review
Trivia Game
Mass
• Inertia is a measure of…
Distance & Time
• Speed depends on two things. What are they?
Speed & Direction
• Velocity has both _____ and _____.
Friction
• A force that opposes motion is…
9.8 m/s/s
• In free fall, objects fall towards the Earth at an acceleration of…
Mass & Velocity
• Momentum depends on _____ and _____.
Decrease
• With the same amount of force, the acceleration of an object will _____ when the mass increases.
Sliding – Rolling – Fluid – Static
• Name four types of friction.
Position
• Potential energy is the energy of…
Third Law
• Newton’s law that states for every action there is an equal and opposite reaction is the…
0.5 m/s/s
• What is the acceleration of an 80-kg object that is pushed with 40 Newtons?
At the top of the mountain and all the way down the mountain, except for at the very bottom
• When does a snowboarder have potential energy?
False
• When a cue ball hits a billiard ball on a pool table, momentum is lost due to friction. True or False?
Mass & Acceleration
• Newton’s Second Law states that force depends on _____ and _____.
False
• Weight and mass are measures of the same thing. True or False?
50 m/s
• A man bikes 400 meters in 8 seconds. What is his average speed?
When the velocity decreases
• What is negative acceleration?
Reference
• We can detect motion by comparing an object to a _____ point.
Texture of Surface & Amount of Force/Weight
• What two things does friction depend on?
50 m/s north
• Write an example of velocity with proper units
Kilograms (kg)
• Mass is measured in…
Work
• What do we call the ability to move an object in the direction of the force?
Joules
• Energy is measured in…
Inertia
• Newton’s First Law is also called the Law of…
Harder
• An object at rest with more mass is _____ to move than a less massive object also at rest.
Unbalanced Force
• What is needed in order to change the motion of an object?
Net Force
• The combined force acting on an object is called the…
Air Resistance
• Some objects fall more slowly than others due to…
Their Masses & Distance Apart
• The Law of Universal Gravitation states that the gravitational force between two objects depends on…
Increases
• If two objects are moved closer together, then the gravitational pull between them…
Force
• A _____ is a push or pull.
19.6 m/s
• You drop a pencil from the top of a building. After two seconds, what is the speed of the pencil in m/s?
Light Color
• In an experiment to test whether or not different colors of light affect plant growth, what is the independent variable?
Plant Height
• In an experiment to test whether or not different colors of light affect plant growth, what is the dependent variable?
Plant Type, Amount of Water, Amount of Light, etc.
• In an experiment to test whether or not different colors of light affect plant growth, what are two controlled variables?
Numbers
• Make one quantitative observation about the classroom.
Properties
• Make one qualitative observation about the classroom
Accelerates
• When an applied force on an object increases, the object…
False – it could be moving with a constant velocity
• An object has a balanced force acting on it. The object must be at rest. True or False?
They hit the ground at the same time
• A 10-kg object and a 100-kg object are dropped from an airplane at the same time. What happens?