The fossil record suggests that the first animals to evolve lived

A.) in the air

B.) in swamps

C.) on land

D.) in the sea

How could you increase the number of snowmen destroyed by the sled sliding down the hill? SledAQ1 A. Increase the starting height of the sled. B. Increase the mass of the sled. C. Increase the starting kinetic energy of the sled. D. All of the above.

Which color is in the middle of the light spectrum?

The Richter scale measures the __ of an earthquake.

Avi, a gymnast, weighs 40 kg. She is jumping on a trampoline that has a spring constant value of 176,400. If she compresses the trampoline 20 cm, how high should she reach? meters

Which most simplified form of the law of conservation of energy describes the motion of the block as it slides on the floor from the bottom of the ramp to the moment it stops?

Which of the following has more inertia: (a) a rubber ball and a stone of the same size? (b) a bicycle and a train? (c) a five-rupees coin and a one-rupee coin?

In a laboratory, you determine that the density of a certain solid is 5.23*10-6kg/mm3. Convert this density into kilograms per cubic meters.

List the solar objects in correct order from the Sun. Venus Earth Mercury Saturn Neptune Mars Jupiter Asteroid Belt The Sun Uranus

The power exerted by a muscle is the product of the force exerted and the velocity of contraction. The area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?

How can you tell one element from another?