Exam Review 8TH GRADE

Calculate the weight of an objects that has a mass of 75 kg.

• 755 N

• 735 N

• 734.6 N

• 736 N

What is the speed of a truck that took 3.5 hours to covered 543 km. ?

• 156 km/ h

• 155.3 N

• 155. 1 km/h

• 155.6 m/s

Tags

NGSS.MS-PS3-1

How long does it take to a train to arrive to the next station at a speed of 300 km/h and covered a distance of 750 km.

• 2.5 h

• 2 h

• 3 h

• 3.5 h

Kahtleen rode her bicycle for 3 hours and covered 33 kms heading North. Calculate the velocity.

• 10 km/ h North

• 22 km / h East

• 11 km/ s North

• 11 km/ h North

A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. Calculate the kinetic energy.

• 89600 J

• 896000 J

• 869000 J

• 986000 J

Tags

NGSS.MS-PS3-1

A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby weighs 12 N. Calculate the potential energy.

• 253 J

• 252 N

• 253 N

• 252 J

Tags

NGSS.MS-PS3-2

Based on its direction, what type of wave is the one in the picture?

• transverse wave

• longitudinal wave

Tags

NGSS.MS-PS4-1

Which two letters represents the wavelength

• a and g

• b and f

• b and c

• c and e

Tags

NGSS.MS-PS4-1

Which letter represents the through.

• d

• a

• c

• b

Tags

NGSS.MS-PS4-1

Calculate the acceleration of an object whose force is 250 N and has a mass of 8 kg.

• 31.25 N

• 31.25 m/ s

• 31.25 m/s ²

• 31.25 m

Tags

NGSS.MS-PS2-2