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Speed
Forces
Newton's Laws
Vocabulary
Misc.
100
What is the equation to calculate speed?
Speed= Distance/Time
100
What is a force?
A push or pull.
100
What is the unit for measuring forces?
Newton
100
How can you tell if a person is walking at a constant speed?
The graph would be linear. A straight, even line with the same slope.
100
What type of energy relates to the ability to do work?
potential energy
200
What is the student's speed if he is walking 100 meters in 20 seconds?
5 m/s
200
What is an unbalanced force?
A force when all the forces on an object cause the object to move.
200
What is Newton's 1st Law of Motion?
An object at rest will stay at rest, an object in motion will stay in motion until acted upon by an unbalanced force.
200
What type of speed would a student be going if they were able to go a short distance in a long period of time?
slow speed
200
An increase in the speed of molecules is another way of saying what
they are heating up
300
What is the student's speed if they are walking for 30 seconds for 90 meters?
3 m/s
300
What is a balanced force?
When equal forces are coming from opposite directions causing an object not to move.
300
What is Newton's 2nd Law of Motion?
The force of an object is equal to the mass and acceleration.
300
What is the definition of a force?
A push or pull.
300
What do waves do when they meet?
they constructively or destructively interfere with one another
400
How far did a student travel if they are traveling 5 m/s for 20 seconds?
100 meters
400
Which force is always pushing down on us?
Gravity.
400
What is Newton's 3rd Law of Motion?
For every action there is an equal and opposite reaction.
400
What is air resistance? Give an example.
A type of friction that pushes upward as an object is falling down.
400
What force is equal and opposite to gravity and produced by flat surfaces?
Normal force
500
How long would it take a student to walk 150 meters at a speed of 10 m/s?
15 seconds
500
What is the force that is moving in the opposite direction of the moving object causing the object to slow down or stop?
Friction Force
500
What is an example of Newton's 2nd Law of Motion?
Choose numbers that will fit in the equation. * Answers will vary
500
What is inertia? What does it depend on?
The tendency to resist change in motion. Depends on an unbalanced force.
500
This common liquid expands when it's molecules slow down and form a solid
what is water