Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
100
Which scientific discovery commonly attributed to Newton did Hooke also claim to have played a major role in?
What is law of gravitation
100
A wind-up car has a mass of 0.40 kg. The wind-up car is accelerating at 0.40 m/s2. What is the net force acting on the wind-up car?
What is 0.16 N
100
Which statement defines a magnet?
An object that can attract or repel other magnets and certain metals.
100
What has occurred if a precipitate is formed?
a chemical change
100
Study the model.
What is the substance in the model?
a compound that consists of molecules; each molecule has three different atoms
200
What is the title of Newton’s book that describes his laws of motion?
what is Mathematical Principles of Natural Philosophy
200
What is the formula for finding net force?
what is Force = mass x acceleration
200
What kind of force is magnetic force?
a field force
200
Which of the given properties of matter is a chemical property?
flammability
200
Which of these sets of atoms would form a compound if they bonded together?
Select two that apply.
two oxygen atoms and a nitrogen atom
an oxygen atom, a nitrogen atom, and a hydrogen atom
300
Which statement describes Newton’s conception of the Solar System?
what is he Sun at the center, with the Earth and other planets orbiting the Sun
300
A car has an acceleration of 1.5 m/s2. A net force of 2100 N is acting on the car. What is the mass of the car?
what is 1,400 kg
300
Study the image of a piece of iron on a string suspended in a magnetic field.
Knowing that iron is magnetic, what will it do in the magnetic field?
The iron moves towards the magnet.
300
What is an exothermic reaction?
a chemical reaction in which thermal energy is released into the surroundings
300
What are substances that are made up of at least two different chemically combined elements called?
compounds
400
Which scientist discovered the moons of Jupiter?
what is Galileo
400
A toy train has an acceleration of 1.2 m/s2. A net force of 3.0 N is acting on the train. What is the mass of the train?
what is 2.5 kg
400
Which statement about electric fields is correct?
An electric field applies a force on a charged object.
400
Dan observes as his teacher pours two liquids into the same beaker. The liquids are both colorless. When the two liquids mix, they suddenly become green.
According to this observation, what has occurred?
a chemical change
400
Andy analyzes a gas and finds that it is made of molecules. Each molecule has two hydrogen atoms and an oxygen atom. What type of gas did Andy study?
a compound
500
In which fields of science did al-Haytham work?
what is astronomy and optics
500
A car has a mass of 2,500 kg. The car is accelerating at 0.5 m/s2. What is the net force acting on the car?
what is 1,250 N
500
An unknown metal is tied to a string. The metal is then placed in a magnetic field. The metal moves towards the magnet.
What can be said about the nature of the metal?
The metal is magnetic.
500
What property of a substance can only be measured or observed by changing the identity of the substance?
chemical
500
Which statement about alkaline earth metals is correct?
They are soft metals.