Science test 10/28/2022 Flashcards

1
Q

Speed

A

Measure how fast an object moves

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2
Q

Velocity

A

Speed with direction

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3
Q

Acceleration

A

Is velocity change during a certain period of time

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4
Q

True or false if there isn’t an exponent on something it is acceleration

A

False

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5
Q

Force

A

Physical action/movement

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6
Q

Applied force

A

Force which is applied to an object by another object

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7
Q

Motion

A

Time of the position

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8
Q

Magnitude

A

Extent of something

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9
Q

Gravitational force

A

The force of attraction

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10
Q

Frame of reference

A

Measurements made

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11
Q

Radial acceleration

A

In a circular motion

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12
Q

Direction

A

A course where someone moves

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13
Q

Net force

A

Forces acting on an object

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14
Q

Balanced force

A

Equal in size

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15
Q

Average speed

A

Overall speed

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16
Q

Newtons

A

Unit of force

17
Q

Friction

A

Something rough

18
Q

Unbalanced force

A

The force applied in one direction is greater than the force applied in the opposite direction

19
Q

Constant speed

A

Speed remains the same

20
Q

Normal force

A

Contact force

21
Q

frictionless

A

A smooth object

22
Q

acceleration

A

Gain speed in a short amount of time

23
Q

Constant velocity

A

Constant speed in a constant direction

24
Q

Deceleration/negative acceleration

A

Reduction in speed or rate

25
Compare Speed and Velocity
Speed = D/T and Velocity = Speed + Direction
26
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
27
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
28
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
29
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
30
When an object is acted on by an unbalanced force, the object always.....
Accelerates