Physical Science Cumulative Exam

The rate of change of velocity is

• momentum.

• speed.

• acceleration.

• force.

Tags

NGSS.HS-PS2-1

The smallest particle of an element that still retains the properties of that element is a(n)

• atom.

• compound.

• mixture.

• eelctron.

The standard used for comparison of test results in an experiment is the

• variable.

• control.

• constant.

• weight.

In an experiment, a variable that does not change when other variables change is

• independent.

• control.

• dependent.

• constant.

The number of protons in an atom's nucleus is the

• mass number.

• atomic number.

• atomic mass.

• average mass.

A machine that is a combination of two or more simple machines is a

• lever.

• wedge.

• wheel & axle.

• compound machine.

A substance formed from two or more elements in which the exact combination of elements is always the same is a(n)

• mixture.

• element.

• solution.

• compound.

The ability of a fluid to exert an upward force on an object immersed in the fluid is

• floating.

• buoyancy.

• power.

• a life vest.

The change of one substance into a new substance is a(n)

• chemical change.

• physical change.

• sublimation.

• evaporation.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Any characteristic of a substance that indicates whether it can undergo a chemical change is a(n)

• physical property.

• chemical property.

• illusion.

• diagnostic factor.