Basic Physics Concepts Quiz

What is a reference point?

• An object that moves constantly

• An object that does not move and is used to figure out if another object has moved

• A point where two objects meet

• A moving object used to measure speed

What does the term "motion" refer to?

• The speed of an object

• The distance one object compared to another has moved either closer or further away

• The force applied to an object

• The time taken for an object to stop

How is speed defined?

• The force applied to an object

• The measurement of how far an object moves in a unit of time

• The distance between two objects

• The time taken for an object to accelerate

What is force?

• A measurement of speed

• A push or a pull on an object

• The distance an object moves

• The time taken for an object to stop

What is a Newton?

• A unit of speed

• A unit of distance

• The unit used to describe the strength of a force

• A unit of time

What is friction?

• A force that speeds up an object

• A contact force that two surfaces use on each other when they rub against each other

• A measurement of distance

• A unit of force

What happens to friction when the surfaces are smoother?

• Friction increases

• Friction decreases

• Friction remains the same

• Friction disappears completely

What is the result when the forces on an object are balanced?

• The object moves to the left

• The object moves to the right

• The object does not move

• The object spins in place

In a tug of war, if one side pulls with 50 Newtons and the other with 30 Newtons, what is the net force and direction?

• 20 Newtons to the left

• 20 Newtons to the right

• 80 Newtons to the left

• 80 Newtons to the right

How does the force of air friction affect the diving bird in the example?

• It increases the bird's speed

• It decreases the bird's speed

• It has no effect on the bird's speed

• It makes the bird fly upwards