แบบทดสอบก่อนเรียน1

1. unit of work

• M

• J

• W

• kg m/s

unit of mass

• kg m/s

• N

• kg

• s

unit of energy

• m/s²

• J

• kg m/s

• kg

unit of velocity

• kg m/s

• m/s²

• N

• m/s

unit of acceleration

• m/s²

• kg

• N

• m/s

units of force

• N

• s

• kg

• m

units of power

• m

• w

• kg

• N

units of momentum

• kg m/s

• Ns

• m/s

• kg

units of impulse

• kg

• s

• Ns

• N

unit of displacement

• kg

• m/s²

• m/s

• m