april bellringers

What is the net force of objects that are moving at a constant speed?

0

Which of the following is a measurement of energy: 15 N, 1.5 J, 15 m/s, 15 Hz?

1.5j

Which law of motion? "A golf ball is sitting on the tee until the golf club hits it."

1st law

Which of the following is a measurement of force: 200 J, 20 m/s/s, 2 N, 2000 mph?

2 n

Which law of motion? "It takes more force to roll a bowling ball than a tennis ball."

2nd

Which law of motion? "The swimmer pushed down on the diving board and then was propelled into the air.

3rd

How many neutrons does tin have?

69

What do atoms in non-magnetic material look like?

all over the place

Based on these densities: A- 0.000178g/cm3 , B- 1 g/cm3 , C- 8.90 g/cm3 , in which material will a sound wave MOST LIKELY travel at the greatest speed?

c

Is water an element or compound? How do you know?

compound

In a distance time graph, an object's motion is shown with a horizontal line. What type of motion is being shown?

constant speed

In a speed time graph, an object's motion is shown with a horizontal line. What type of motion is being shown?

constant speed

What is the formula for density?

density divided by volume

Which part of the atom has a negative charge?

electron

T/F: Energy in the form of heat, light, and sound are absorbed or released during a physical change.

false

True or False: Sound waves are part of the electromagnetic spectrum.

false

Which electromagnetic wave has the highest frequency?

gamma rays

Which of the three field forces does not repel other objects but only attracts other objects?

gravitational

Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?

hetrogenous

Any warm object emits this wave. Night vision cameras are able to detect this type of wave.

inferead

A positively charged rod is brought close to one end of a neutral metallic plate. What type of charge is induced on the closest side of the plate?

it will moved to the negatives.

Name the three field forces.

magnetic static elected gravity.

Sound waves are considered what type of wave?

mechanicl longitudinal

Which group on the Periodic Table of Elements is Argon in?

noble gaes

It is estimated that 99% of all matter is in this state.

plasma

Which of the following are NOT physical properties of matter: reactivity, density, inertia, flammability, color, conductivity?

reactivy and flammability

objects or liquids with higher density are more likely to :expand sink float or dissolve

sink

a solid changes directly to a gas through the process of

sublmation

Which object has more inertia, a motorcycle or a school bus? How do you know?

the school bus because it has more mass.

What type of energy is possessed within an object due to the movement of its particles?

thermal energy

An object that is balanced has how much Net forces acting on it?

zero neutons acting on it.