End of unit Physics quizp

Unit of speed?

• seconds
• metres
• seconds per metre
• metres per second

Tags

NGSS.MS-PS3-1

where is the vehicle stationary

• A
• B
• C
• D

where is the vehicle moving the fastest?

• A
• B
• C
• D

How do you know where the vehicle is moving fastest?

• Steepest gradient
• Flatest part
• Highest X value
• Highest Y value

What's the average speed of the object over the whole journey?

• 0.06 m/s
• 15 m/s
• 20 m/s
• 30 m/s

Calculate the pressure exerted on a surface by a brick of weight 10 N. The area in contact with the surface is 20 cm². 

• 500 N/cm²
• 0.5 N/cm²
• 2 N/cm²
• 200 N/cm²

Calculate the moment of a force of 3 N acting 0.2 m from a pivot

• 0.6 Nm
• 15 Nm
• 0.07 Nm

What weight would you need to balance this seesaw?  Moment = force x distance from pivot

• 4 N
• 3.6 N
• 0.4 N
• 3N

Two trains are travelling on parallel tracks. Imagine that you are travelling on Train A.   Train A travels 12 m/s.  Train B is travelling at 20 m/s in the same direction but on a different set of tracks. At the point when train B is passing train A, describe the speed and direction of the train B as it appears to you

• Train B will be passing the opposite way at 20 m/s
• Train B will appear to be overtaking at 20 m/s
• Train B will appear to be overtaking at a speed of 8 m/s.
• Train B will be passing the opposite way at 8 m/s

Two trains are travelling on parallel tracks. Imagine that you are travelling on Train A at 12 m/s. Train B is on the other set of tracks but is travelling towards your train at 20 m/s.  At the point when train B is passing train A, describe the speed and direction of the train B as it appears to you. 

• Train B will be passing you at 8 m/s
• Train B will be overtaking you at 8 m/s
• Train B will be passing you at 32 m/s
• Train B will be overtaking you at 32 m/s