Physics Dynamics

It's an agent that causes or opposes changes in the motion of matter, or

tends to do so.

• Weight

• Mass

• Force

• Vector

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

According to Newton’s second law, doubling a net force on a system of constant mass will double...

• the mass

• the acceleration

• the force

• the magnitude

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NGSS.MS-PS2-2

If force is a vector, it has a magnitude and a ___

A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²

• 18 m/s²

• 16 m/s²

• 16 m/s

A cannonball is fired with an initial velocity of 100. meters per second at an angle of 15.0° above the horizontal. What are the horizontal (v_x) and vertical (v_y) components of this velocity?

• 25.9 m/s

• 99.6 m/s

• 76.0 m/s

• 65.0 m/s

A cannonball is fired with an initial velocity of 100. meters per second at an angle of 15.0° above the horizontal. What are the horizontal (v_x) and vertical (v_y) components of this velocity?

• 25.9 m/s

• 99.6 m/s

• 76.0 m/s

• 65.0 m/s

Which scientist first stated the principle of inertia?

• Galileo Galilei

• Isaac Newton

• Albert Einstein

• James Prescott Joule

Objects in a state of motion (either moving or at rest) tend to remain that way. According to Galileo is the:

• Remaining State of Motion

• Natural state of Motion

• Acceleration of Motion

• Galilei State of Motion

What is the symbol that represents the resultant of simultaneous concurrent forces?

• Alpha

• Beta

• Sigma

• Theta

Tags

NGSS.HS-PS2-1

What is the force called that exactly balances a nonzero force sum acting on an object?

• summing force

• unbalanced

• balanced force

• equilibrant force