Science test 10/28/2022 Flashcards
Speed
Measure how fast an object moves
Velocity
Speed with direction
Acceleration
Is velocity change during a certain period of time
True or false if there isn’t an exponent on something it is acceleration
False
Force
Physical action/movement
Applied force
Force which is applied to an object by another object
Motion
Time of the position
Magnitude
Extent of something
Gravitational force
The force of attraction
Frame of reference
Measurements made
Radial acceleration
In a circular motion
Direction
A course where someone moves
Net force
Forces acting on an object
Balanced force
Equal in size
Average speed
Overall speed
Newtons
Unit of force
Friction
Something rough
Unbalanced force
The force applied in one direction is greater than the force applied in the opposite direction
Constant speed
Speed remains the same
Normal force
Contact force
frictionless
A smooth object
acceleration
Gain speed in a short amount of time
Constant velocity
Constant speed in a constant direction
Deceleration/negative acceleration
Reduction in speed or rate
Compare Speed and Velocity
Speed = D/T and Velocity = Speed + Direction
Shelby is traveling in an airplane to New York. She starts out going Northwest at a speed of 340km/h. As they hit Florida, they remain at the same speed of 340km/h but head north. Did Shelby’s airplane change the speed or velocity while flying?
Velocity
If Frank is pushing a box with 10N of force to the left and Jose is pulling the box with 5N of force to the left, what will be the net force?
15N to the left
During an arm wrestle, neither Alexis nor Jaime was able to gain an advantage. Which of the following explains the forces in this situation?
Balanced forces
A rocket ship is traveling to Saturn for a flyby and to take pictures to send back to Earth. If no outside force is applied to it, what will happen to its speed over the course of the trip?
Stayed constant
When an object is acted on by an unbalanced force, the object always…..
Accelerates
