Uniformly Accelerated Motion (UAM)

What is the SI unit of acceleration?

• m

• s

• m/s

• m/s²

Tags

NGSS.HS-PS2-1

Which of the following is a constant in uniformly accelerated motion?

• Displacement

• Acceleration

• Time

• Velocity

What do velocity and acceleration have in common?

• They both include a direction.

• They have nothing in common.

• They both use force.

• They both use mass to calculate their values.

Tags

NGSS.HS-PS2-1

If the velocity and the acceleration have opposite directions, it only means that ________.

• the velocity increases

• the velocity is constant

• the velocity decreases

• it has a null velocity

If the velocity of a car is negative, it means (in the usual convention) that _________.

• it is moving to the left

• it is decreasing its velocity

• it is moving to the right

• it has a decreasing acceleration

Uniformly accelerated motion is evident in our everyday living. Which scenario or object exhibits uniformly accelerated motion?

• A falling leaf.

• A ringing cellphone.

• A sleeping cat.

• A hanging wall clock.

Tags

NGSS.HS-PS2-1

Speed limits vary with the type of road and area. Which of the following statements is NOT TRUE about speed limit?

• It permits vehicles to move in uniformly accelerated motion.

• It minimizes vehicular accidents on the road.

• It regulates the flow of traffic in different areas.

• It restricts the speed of vehicles.

Tags

NGSS.HS-ETS1-3

Answer the guide question that follows.

(A car accelerates from 13 m/s to 25 m/s in 6.0 seconds. What was its acceleration?)

What is being asked from the problem?

• Displacement

• Time

• Velocity

• Acceleration

Tags

NGSS.HS-PS2-1

Answer the guide question that follows.

(A car accelerates from 13 m/s to 25 m/s in 6.0 seconds. What was its acceleration?)

What equation should be used to solve the problem?

• d = v_it + 1/2 at²

• d = 1/2 (v_f + v_i) t

• v_f = v_i + at

• v_f² = v_i² + 2ad

Tags

NGSS.HS-PS2-1

Answer the guide question that follows.

(A car accelerates from 13 m/s to 25 m/s in 6.0 seconds. What was its acceleration?)

What are the given values? Select all that apply.

• Initial velocity

• time

• displacement

• final velocity

Tags

NGSS.HS-PS2-1