Physical Science Review

Multiple Choice

As the MASS of an object increases, its gravitational pull _________.

• Stays the same

• Decreases, then increases, then decreases

• Decreases

• Increases

Multiple Choice

When two objects are closer to one another, the force of gravity between them ____________.

• Increases

• Decreases

• Stays the same

• Divides by a factor of 100

Multiple Choice

If each object has the same mass, which pair has the strongest gravitational attraction?

• The first, because it appears to weigh the most.
• The first, because the arrows are thickest.
• The  second, because it has an even balance of weight and distance.
• The first, because the objects are closest together.

Multiple Choice

The moon has a smaller mass than the Earth. If you traveled to the moon your weight would?

• Increase

• Decrease

• Remain the same

• Change whenever you feel like it

Multiple Choice

Why do planets orbit the Sun?

• The Sun is the only celestial object that has a gravitational pull.

• The Sun’s chemical composition makes it attract planets.

• Only celestial bodies that emit light, like the Sun, can be at the center of an orbit.

• The Sun is the most massive object in our solar system, so it exerts the greatest gravitational pull.

Multiple Select

What TWO ways can you increase gravitational attraction between two objects?

• Give the objects more mass

• Make the objects closer to each other

• Give the objects less mass

• Make the objects further to each other

Multiple Choice

Which of the following will not change in different gravitational fields?

• weight
• force
• mass
• pounds

Multiple Choice

What do the lines around this magnet represent?

• North Pole
• South Pole
• Magnetic Declination
• Magnetic Field

Multiple Choice

If you cut a magnet in half, what happens to the poles?

• One half gets the North Pole, the other half gets the South Pole
• Both halves get only a North Pole
• Both halves get only a South Pole
• Both halves get a North pole and a South Pole

Multiple Choice

The strongest part of a magnet is...

• the bars.
• the force field.
• the poles. 
• the middle.

Multiple Choice

What will happen when these magnets are brought close together?

• They will attract each other.
• They will repel each other.
• Both magnets will turn to the left
• Both magnets will turn to the right

Multiple Choice

Magnets that are arranged like this will _______. 

• move away from each other (repel)
• move towards each other (attract)

Multiple Choice

An area surrounding an electron that exerts a force on nearby charges is a(n)

• Electric Field

• Magnetic Field

• Gravitational Field

• Baseball Field

Multiple Choice

Which answer best describes this image?

• The positive charge is repelling the negative charge.
• The blue charged object will repel the negatively red charged object.
• The positively charged red object will be attracted to the negatively charged blue object.

Multiple Choice

Static electricity is a...

• Contact Force

• Non-Contact Force

Multiple Choice

What is one advantage of the electromagnet pictured below

• The magnet can be turned off when the electric current is switched off
• The magnet is permanent so it is more reliable
• The magnet is turned off when the domains align
• It would be more of an advantage if the magnet was permanent

Multiple Select

When describing motion we should include which two of the following?

• Object

• Distance

• Direction

• How fluffy Mrs. Gaffney's cat is

Multiple Choice

An object is in motion if it changes position relative to

• a reference point

• speed

• the distance traveled

• constant speed

Multiple Choice

The people on a bus are not moving in relation the seats inside the bus, but they are in _______________ compared to the streets outside.

• position

• displacement

• reference point

• motion

Multiple Choice

A contact force is from

• objects physically touching

• far apart objects

• not touching object

• always a pull

Multiple Choice

Definition: Force that opposes the motion of objects that move through the air.

• spring force

• normal force

• air resistance (Drag)

• electric force

Multiple Choice

Definition: a force which is applied to an object by a person or another object.

• contact force

• applied force

• spring force

• normal force

Multiple Choice

Definition: the force perpendicular to a surface that prevents an object from falling through the surface.

• normal force

• gravity

• applied force

• contact force

Multiple Choice

Definition: stress that occurs when forces act to stretch an object.

• friction

• normal force

• tension

• gravity

Multiple Choice

Definition: The force exerted by a compressed or stretched spring upon any object that is attached to it.

• spring force

• normal force

• applied force

• electric force

Multiple Choice

If these teams are pulling with the same amount of force what will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Multiple Choice

What is the net force?

• 20 N 
• 0 N 
• 400 N 
• 40 N 

Multiple Choice

What will cause an object to move?

• Applied forces
• Balanced forces
• Unbalanced forces

Multiple Choice

What is the net force?

• 3 N

• 3 N, right

• 17 N, right

• 3 N, left

Multiple Choice

If both forces are going in the same direction you should______ those forces

• Add

• Subtract

• Divide

• Multiply

Multiple Choice

When forces are going in the opposite direction of each other you should do what do find the net force

• Subtract

• Add

• Divide

• Multiply

Multiple Choice

Motorcycles going at constant speed

• Unbalanced force

• Balanced force

Multiple Choice

What is the name of the missing force?

• frictional force

• normal force

• gravity

• applied force

Multiple Choice

In a force diagram the size or length of the arrow tells you:

• the strength of the force

• the distance of the force

• the direction of the force

Multiple Choice

A hockey puck glides to the right across the ice at a constant speed. Choose the right force diagram below.

Multiple Select

This object is being pushed on a surface. What direction would it be moving? (pick all that apply):

• up

• down

• left

• right

Multiple Choice

A downward-moving skydiver who has just opened the parachute is slowing down. Which force diagram shows this situation?