RECF Mechanics Practice

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

Tags

NGSS.MS-PS3-1

What is the formula to calculate speed?

• S = t/d
• S = d/t
• S = d x t
• S = t x d

Tags

NGSS.MS-PS3-1

The speedometer on your car tells you

• average velocity
• instantaneous velocity
• average speed
• instantaneous speed

Tags

NGSS.MS-PS3-1

A dog runs with an initial speed of 7.5 m/s to a stop in 15 seconds.  What is the dog's acceleration?

• -7.5 m/s
• -7.5 m/s²
• -0.5 m/s²
• 7.5 mi//hr

Tags

NGSS.HS-PS2-1

The SI unit for time is

• second (s)
• minute (min)
• hour (hr)
• year (yr)

What is the SI unit for acceleration?

• m/s
• m
• m/s²
• s

What is the SI unit for speed and velocity?

• Km
• s
• m/s
• m/s²

Tags

NGSS.MS-PS3-1

Wind blowing at 20 mph.Vector or scalar?

• Scalar
• Vector

30 m/sec, East. Scalar or Vector

• Scalar
• Vector
• Neither

Scott travels north 5 miles and then goes west 3 miles before coming straight back south 2 miles. What is his distance?

• 10 miles
• 7 miles
• 8 miles
• 6 miles