Psychological development

What is the chemical symbol for common salt?

• Nacl

• H2O

• H2SO4

• NaOH

What is the unit of energy

• Newton

• Joules

• Mass

• Kilogram

How many laws did Newton propound in motion

• One

• Three

• Four

• Two

The energy possessed by a body by virtue of its motion is referred to as

• Friction

• Potential

• Force

• Kinetic

Tags

NGSS.HS-PS3-2

Stiffness of an elastic material is the force required to give unit what?

• Limit

• Extension

• Plastic

• Force

A stone is projected at an angle of 60 degree and an initial velocity of 20m/s. Determine the time of flight?

• 34.6s

• 3.46s

• 17.3s

• 1.73s

Tags

NGSS.5-PS2-1