Physics Openers Unit 3

If a ball is moving at 20.0 m/s and travels for 4.8 seconds, what is its distance?

• 0.24 m

• 4.2 m

• 50 m

• 96 m

A soccer ball is kicked to score a goal. The velocity at the start of the path is 15 m/s. What is the velocity at the peak of the path?

• -9.8 m/s

• 9.8 m/s

• 0 m/s

• 15 m/s

The motion of an object that is projected off of the side of a cliff is:

• a combination of constant horizontal velocity and downward acceleration due to gravity

• constant upward motion

• motion with increasing horizontal speed only

• motion with no acceleration

What is the vertical velocity of an object projected horizontally off of a building?

• -9.8 m/s

• 0 m/s

• 4.9 m/s

• 9.8 m/s

Tags

NGSS.HS-PS2-1

A soccer ball is kicked to score a goal. The velocity at the start of the path is 15 m/s. What is the velocity at the end of the path?

• -9.8 m/s

• 9.8 m/s

• -15 m/s

• 15 m/s

Which statement is true about horizontal and vertical components of projectile motion?

• The components are independent of each other.

• The horizontal component is dependent on the vertical component.

• The vertical component is dependent on the horizontal component.

• Both are dependent on each other.

What one variable impacts horizontal and vertical motion equally?

• Acceleration

• Displacement

• Final Velocity

• Initial velocity

• Time

Two balls with different masses roll off of a desk. If they leave the desk at the same time, which statement is true?

• The one with less mass lands first.

• The one with more mass lands first.

• Both land at the same time.

• We can’t predict which one lands first.

Tags

NGSS.MS-PS2-4

What is the acceleration at the top of an object’s projectile path?

• -9.8 m/s²

• 9.8 m/s²

• 0 m/s²

• -4.9 m/s²

Tags

NGSS.HS-PS2-1

The one variable that can help you move between vertical variables and horizontal variables is:

• The independent variable

• The dependent variable

• The control variable

• The extraneous variable