Semester 1 Physics Review

Front

What is displacement in physics?

Back

Displacement is the overall change in position of an object, measured as a straight line from the starting point to the ending point, and is a vector quantity.

Front

What is a vector quantity?

Back

A vector quantity is a physical quantity that has both magnitude and direction.

Front

What is the resultant vector?

Back

The resultant vector is the vector that represents the sum of two or more vectors, showing the overall effect of those vectors.

Front

How do you find the vertical component of a vector?

Back

The vertical component of a vector can be found using trigonometric functions, specifically by multiplying the vector's magnitude by the sine of the angle it makes with the horizontal.

Front

What is horizontal velocity in projectile motion?

Back

Horizontal velocity in projectile motion is the constant velocity of an object moving along the horizontal axis, unaffected by gravity.

Front

What is the significance of direction in vector quantities?

Back

Direction is crucial in vector quantities because it determines the vector's orientation in space, affecting how vectors combine and interact.

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Front

How do you represent vectors graphically?

Back

Vectors can be represented graphically by arrows, where the length of the arrow indicates the magnitude and the direction of the arrow indicates the direction of the vector.

Tags

NGSS.MS-PS3-1

Front

What is the difference between scalar and vector quantities?

Back

Scalar quantities have only magnitude (e.g., mass, temperature), while vector quantities have both magnitude and direction (e.g., velocity, force).

Front

What is the formula for calculating the magnitude of a resultant vector?

Back

The magnitude of a resultant vector can be calculated using the Pythagorean theorem if the vectors are perpendicular: R = √(A² + B²), where A and B are the magnitudes of the two vectors.

Front

What role does gravity play in projectile motion?

Back

Gravity acts as a constant downward force on a projectile, affecting its vertical motion and causing it to follow a parabolic trajectory.

Tags

NGSS.HS-PS2-4