Which items are matter?

Battery electricity mobile phone sound light heat

Which would ultimately cause the armature in an electric motor to spin?

The Standard Kilogram is a platinum-iridium cylinder 39 mm in height and 39 mm in diameter. What is the density of the material? density=m/v mass=1kg and volume being volume of a cylinder.

Why does conduction occur in solids and liquids easier compared to gases? options: Because the particles in gases are closer together and move slower Because the particles in gases are farther apart and move faster.

A rope is stretched to a distance of 10 meters, and a single pulse is generated at one end. The time required for the wave to reach the other end of the rope was 2.0 s. What is the velocity of this pulse?

What happens to the gravitational force between any two bodies if the mass of a body is doubled keeping the distance between two bodies constant?

Jill is getting ready to push little Frank in his swing. She pulls Frank back as high as she can and then releases the swing. What is the initial transfer of energy that accelerates the swing when she lets go?

Which phenomenon generates electric current? A black body radiation B ultraviolet catastrophe C emission spectra D photoelectric effect

What is the product of 3.15 m and 2.006 m with the correct number of significant figures?

Consider what happens at the moment when the block leaves the surface of the globe. Which of the following statements are correct? - The net acceleration of the block is directed straight down.

A mechanic pushes a 3.00 ✕ 103-kg car from rest to a speed of v, doing 4,680 j of work in the process. during this time, the car moves 26.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.