Review 1st Quarter Midterm Pt.2

An object has an acceleration of 2 m/s². How long would it take to reach 20 m/s, if V_i=10 m/s?

• 1s

• 3s

• 5s

• 30s

Tags

NGSS.HS-PS2-1

What is the acceleration from t=1s to t=3s?

• 0m/s²

• 3m/s²

• -3m/s²

• 1m/s²

Tags

NGSS.HS-PS2-1

If an object has zero acceleration, then it MUST be at rest.

• True

• False

In projectile motion, the vertical velocity at the peak is zero.

• True

• False

If an object's total time in the air is 40 sec, then how long did it take to reach the max height?

• 0s

• 40s

• 20s

An object is thrown with an initial velocity of 33 m/s. When it returns the magnitude will be..

• a velocity of 20m/s

• a velocity of 25m/s

• a velocity of 10m/s

• a velocity of 33m/s

Two carts fall from a table. From the image below which cart will travel farthest from the table's edge?

• A

• B

• the same horizontal distance

Tags

NGSS.HS-PS2-1

Two carts fall from a table. From the image below which cart will travel farthest from the table's edge?

• A

• B

• the same horizontal distance

Tags

NGSS.HS-PS2-1

If we look at the initial horizontal velocity and the final horizontal velocity of the cannon ball, which choice is correct?

• initial Vx = final Vx

• initial Vx < final Vx

• initial Vx > final Vx

Tags

NGSS.HS-PS2-1

The two rockets turn off their thrusters and their velocities are shown at that instant. Which of the two rockets will reach a larger maximum height?

• A

• B

• the same

Tags

NGSS.MS-PS3-1