What term refers to the measure of how much matter is in an object?

a. gravity

b. mass

c. force

d. weight?

What is the mass of a child if the force of gravity on the child's body is 100 N?

The spring of a toy car stores 10 J of potential energy. Only 8 J of energy changes to kinetic energy as the car moves. What happens to the remaining 2 J of energy?

An oscillator consists of a block of mass 0.500 kg connected to a spring. When set into oscillation with amplitude 35.0 cm, the oscillator repeats its motion every 0.500 s.

A 15.0-kg block of ice at 0.00 °c falls into lake superior, which is a freshwater lake. the lake water is at 10.0 °c, and the latent heat of fusion for ice is 3.34 * 105 j/kg. find the various changes in entropy due to the melting of the ice.

Which of the following items best embodies the physical property of conductivity? A. a copper skillet that easily transmits thermal energy B. gold's ability to be fashioned into intricate pieces of jewelry C. a diamond's ability to scratch glass D.

How did Niels Bohr change the atomic model based on his experimental results?

After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 50.0 cm. She finds that the pendulum makes 100 complete swings in 136 s. What is the value of g on this planet?

When a the irregularities of one surface come into contact with those of another surface, occurs

What type of wave passes through the spring in the frog toy? Why?

Different kinds of substances have different properties of metals