Year 9 Velocity and Acceleration HW

A distance vs. time graph shows an object's

• frame of reference

• speed

• acceleration

• favorite food

What is the velocity of a runner who travels South 100 m in 10 seconds

• 10 m/s South

• 10 m/s

• 100 m/s South

• 1000 m/s

Changes in our speed, direction or both are called _________.

• gravity
• changes
• acceleration
• displacement

Tags

NGSS.MS-PS2-2

A little freshman moves down the hall at 5 m/s. When he sees Luke coming, he slows down. After 3 s, he is moving at 2 m/s. What is his acceleration?

• 1 m/s²

• -2 m/s²

• -1 m/s²

• 3 m/s²

What is this?

"This car is speeding up"

• Speed

• Velocity

• Acceleration

• Time

What is this?

A car is traveling 50 mph.

• Speed

• Velocity

• Acceleration

• Time

What is this?

"This airplane is traveling at 500 mph, West"

• Speed

• Velocity

• Acceleration

• Time

What is this?

"The car has to go from 40mph to 60mph when entering the freeway"

• Speed

• Velocity

• Acceleration

• Time

What is this?

"The car is traveling at 150 kilometers per hour"

• Speed

• Velocity

• Acceleration

• Time

What is this?

• Speed

• Velocity

• Acceleration

• Time