An element is a substance that cannot be broken down chemically into

electrons.

another substance.

o C. atoms.

OD. protons.

Name the four fundamental forces of nature, the forces front which all others are derived

Q2. Fill in the blanks: North Pole of a magnet will ... ... North pole of another magnet. South Pole of a magnet will. North pole of a another magnet. Needle of a compass lines up with the ... of a magnet.

The motion of an object will not be changed if

Indicate whether the statement is true or false. Any force that causes an object to move in a circular path is called a centripetal force.

Which of the following materials has the highest tensile strength? spider silk copper glass plastic

Which is an example of transfroming potential energy to kinetic

Place the ball in the plastic bag, and twist the top so the ball is secure in the bag. Wrap the twisted portion with tape so it stays tight. Use the hole punch or scissors to poke a hole in the part of the bag that's above the ball.

Choose The units of 1/4πε0 are: A. N2C2 B. N • m/C C. N2 • m2/C2 D. N • m2/C2 E. m2/C2

What does a fern ultimately depend on as an energy source?

According to the Doppler Effect, which statement is true about a sound as it approaches you and then moves away. A) As the source approaches you, the sound waves are compressed so the pitch of the noise increases.