A proper quantity showing velocity would be

• 25 m/s.
• 30 m south.
• 15 m/s north.
• 10 m.

Tags

CCSS.HSN.VM.A.1

Use the graph to determine the speed of the object during the first 20 seconds.

• 0.5 km/h

• 0.5 m/s

• 20 km/h

• 20 m/s

Tags

NGSS.MS-PS3-1

At 60 seconds, how far had this object traveled? 

• 0 m
• 10 m
• 20 m
• 40 m

Tags

NGSS.MS-PS3-1

A runner races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?

• 10 m/s

• 1000 m/s

• 1000 km/h

• 10 km/h

Find the average speed of an object that travels a distance of 142 km in 2.0 hours.

• 17 km/h

• 52 km/h

• 71 km/h

• 90 km/h

Determine the velocity of a train that travels 25 km East in 0.5 hrs.

• 5 km/h

• 5 km/h East

• 50 km/h

• 50 km/h East

A ball of clay is thrown at a wall at a velocity of 28.0 m/s. The clay stops 0.020 seconds after it hits the wall, What is the acceleration of the clay when it hits the wall?

• 1400 m/s²

• -1400 m/s²

• 0.56 m/s²

• -0.56 m/s²

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?

• 24 m/s²

• 18 m/s²

• 16 m/s²

• 64 m/s²

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A 25 kg tin sphere and a 15 kg copper sphere with the same diameter fall freely from the top of a building. If friction is ignored, the spheres will have the same _______.

• potential energy

• kinetic energy

• momentum

• acceleration

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following has the greatest inertia?

• a toy car

• a jet airliner

• a full-size car

• a pick-up truck

Tags

NGSS.MS-PS2-2