The Universe and Semester Exam practice

Front

In a chemical reaction, the atoms in the _______ rearrange to form new ________.

Back

reactants, products

Front

What type of galaxy is Andromeda?

Back

Spiral

Front

What is the net force that accelerates a 0.3 kg volleyball at 800 m/s²?

Back

240 N

Front

Galaxy 2 is a _____ galaxy.

Back

Irregular

Front

Galaxy 3 is a _____ galaxy.

Back

Spiral

Front

What are the two main types of galaxies?

Back

Spiral and Elliptical.

Front

Define 'reactants' in a chemical reaction.

Back

Substances that undergo change during a chemical reaction.

Front

Define 'products' in a chemical reaction.

Back

Substances that are formed as a result of a chemical reaction.

Front

What is the formula for calculating force?

Back

Force = mass × acceleration.

Front

What is the mass of a volleyball if it accelerates at 800 m/s² with a net force of 240 N?

Back

0.3 kg.