SCIENCE TERM 2 REVIEW (FORCE, WORK, PE,KE, SIMPLE MACHINE)

What is the formula for calculating force?

• F = m * a

• F = m + a

• F = m / a

• F = m - a

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If a 5 kg object is accelerated at 2 m/s², what is the force applied?

• 15 N

• 5 N

• 20 N

• 10 N

Tags

NGSS.MS-PS2-2

Define work done in terms of force and distance.

• Work done = Force / Distance

• Work done = Distance - Force

• Work done = Force × Distance

• Work done = Force + Distance

How much work is done when a force of 10 N moves an object 3 m?

• 25 J

• 15 J

• 30 J

• 20 J

What is the unit of power?

• joule

• volt

• ohm

• watt

If 100 J of work is done in 5 seconds, what is the power output?

• 25 W

• 10 W

• 50 W

• 20 W

What is the formula for kinetic energy?

• KE = 0.5 * m * v

• KE = 0.5 * m * v^2

• KE = m * v

• KE = m * v^2 / 2

Tags

NGSS.MS-PS3-1

Calculate the kinetic energy of a 2 kg object moving at 3 m/s.

• 12 Joules

• 3 Joules

• 9 Joules

• 6 Joules

Tags

NGSS.MS-PS3-1

What is potential energy?

• Kinetic energy is the energy of motion.

• Potential energy is the energy stored in an object due to its position or configuration.

• Potential energy is the energy released during a chemical reaction.

• Potential energy is the energy associated with thermal motion.

Tags

NGSS.MS-PS3-2

How do you calculate gravitational potential energy?

• GPE = m * h / g

• GPE = g * h / m

• GPE = m * g * h

• GPE = m + g + h

Tags

NGSS.MS-PS3-2