back at it pt. 3 goodluck yall only 50 this time

What is the SI unit of work?

• Coulomb

• Joule

• Newton

• Watt

What is the concept of inertia?

• Rate of change of momentum

• Acceleration of an object

• Force applied to an object

• Tendency of an object to resist changes in its motion

What is the net force on a book if it is pushed with a force of 32N and the table applies 4N of friction?

• 36N

• 40N

• 32N

• 28N

What is the acceleration experienced by the bob at an angle θ?

• Tangential acceleration=gsinθ; centripetal acceleration=(T−mgcosθ)/m

• Tangential acceleration=gsinθ; centripetal acceleration=T–mgcosθ/m

• Tangential acceleration=T–mgcosθ/m; centripetal acceleration=gsinθ

• Tangential acceleration=T–mgcosθ/m; centripetal acceleration=gsinθ

What is the minimum mass m3 that may be placed on m1 to prevent it from sliding if m1=15kg, m2=10kg, m3=25, and μs=0.2?

• 15kg

• 10kg

• 5kg

• 20kg

What is the principle focus of a concave mirror?

• The point where light rays do not reflect

• The point where light rays diverge after reflection

• The point where light rays converge after reflection

• The point where light rays reflect at an angle

What is the relationship between temperature and kinetic energy?

• Higher temperature means lower kinetic energy

• Lower temperature means lower kinetic energy

• Higher temperature means higher kinetic energy

• Lower temperature means higher kinetic energy

What is meant by convection?

• Heat transfer through solids

• Heat transfer through liquids and gases

• Heat transfer through electromagnetic waves

• Heat transfer through friction

What is the law of reflection?

• The angle of incidence is not related to the angle of reflection

• The angle of incidence is equal to the angle of reflection

• The angle of incidence is greater than the angle of reflection

• The angle of incidence is less than the angle of reflection

What is meant by latent heat?

• The heat required to change a solid to a gas

• The heat required to change a liquid to a gas

• The heat required to change a solid to a liquid

• The heat required to change a gas to a liquid