Unit 3 - Two-Dimensional Motion: Activity 1 (Flashcardizz)

Front

What direction does friction act when an object is moving?

Back

Friction acts in the opposite direction to the motion.

Front

At what point is the vertical component of velocity (v_y) equal to 0 m/s?

Back

At point B.

Front

What are the units on the coefficient of friction?

Back

None.

Front

Why does the horizontal component of velocity for a projectile remain constant in the absence of air resistance?

Back

There is no horizontal acceleration.

Front

What law explains why milk falls off a tray when it bumps into a table edge?

Back

Newton's 1st Law of Motion.

Front

Define two-dimensional motion.

Back

Motion that occurs in a plane, involving both horizontal and vertical components.

Front

What is the formula for calculating the range of a projectile?

Back

Range = (v^2 * sin(2θ)) / g, where v is the initial velocity, θ is the launch angle, and g is the acceleration due to gravity.

Front

What is the difference between scalar and vector quantities?

Back

Scalar quantities have magnitude only, while vector quantities have both magnitude and direction.

Front

What is the acceleration due to gravity on Earth?

Back

Approximately 9.81 m/s².

Front

Explain the concept of projectile motion.

Back

Projectile motion is the motion of an object thrown into the air, subject to gravitational acceleration and no air resistance.