9 Weeks Test 3/8/24

June 21

Summer solstice

The season of autumn is also known as…

Fall

The Eaty experiences the four seasons because it is…

Tilted

What season is the northern hemisphere in when the Earth is titled toward the sun?

Summer

What season is the southern hemisphere in when Earth is tilted toward the sun?

Winter

Tropical line between the equator and the arctic circle?

Tropic of Cancer

Tropical line between the equator and the antarctic circle?

Tropic of Capricorn

When gravity is the only force acting on an object.

Free fall

This depends on the object’s mass and velocity.

Momentum

When the force of air resistance is equal to the downward force of gravity.

Terminal velocity

The tendency of an object to resist any change in its motion.

Inertia

To make an electromagnet you need all of these except?

• Magnet

• Wire

• Nail

• Battery

Magnet

These are all non-contact forces except?

• electric

• gravity

• magnetism

• friction

Friction

A compass works by point to magnetic

North

True or False: Force is a change in speed. direction, shape, or size

True

In a tug of war team A pulls with a total force of 2500 Newtons to the East. Team B pulls with a net force of 1500 Newtons to the West. Which team will win and in what direction?

Team A to the East

In a tug of war team A pulls with a total force of 2500 Newtons to the East. Team B pulls with a net force of 1500 Newtons to the West. What is the net force acting on the winning team?

1000 Newtons

F=MxA

2nd Law

Inertia

1st Law

Action/Reaction

3rd Law

True or False: Forces that are balanced cancel each other out.

True

Which of the following would change when an unbalanced force acts upon an object at rest?

The object’s motion

How quickly an object accelerates would depend upon what two things?

Force and mass

Which variable did we change in the marble launcher lab?

Launch angle

Which variable did we measure in the marble launcher lab?

Distance

True or False: In Bill Nye the Science Guy “Motion” the kid pulled the tablecloth really slowly so he wouldn’t affect the inertia of the things on the table.

False

Law that deals with equal and opposite forces.

Action/Reaction

A bar that pivots on a fulcrum and applies force to move a load.

Lever

Door knobs are an example of this machine.

Wheel and axle

Also known as a ramp

Inclined plane

A rope or chain wrapped around a system of wheels

Pulley

The head of an axe is one of these simple machines

Wedge

An inclined plane wrapped around a central cylinder

Screw

What amount of force has to be applied to a 6 kg bowling ball to accelerate it to 2 m/s²

12 N

According to Bill Nye, airplanes have smooth shapes to reduce

drag

True or False: There is friction in space

True

Comets burn up when they enter the Earth’s atmosphere because of the force of ___________.

Friction

The quantity that is described by a number

Scalar

A quantity described by both a number and a direction

Vector

Distance (d) divided by (t).

Speed

Speed (s) multiplied by time (t).

Distance

Distance (d) divided by speed (s).

Time

True or False: Speed is a vector

False

True or False: Velocity is a vector

True

What is the speed of a motorcycle that travels 20 meters in 4 seconds

5 m/s

True or False: The force of gravity measured on Earth is 9.8 m/s²

True

What is the force that a 7 kg bowling ball rolled at 2 m/s² down a lane that will hit the pins with?

14 N

A variable which gives direction information included in its value

Vector

Values that give the position relative to an origin

Coordinates

You start at the origin and walk 4 meters east, 7 meters west, and 3 meters east/ Where are you now?

The origin

True or False: A graph is a mathematical diagram showing one variable on the vertical (y) axis and the second variable on the horizontal (x) axis.

True

True or False: The dependent variable in an experiment is changed by the experimenter.

False

True or False: Both speed and velocity are vectors

False

What formula did we use to calculate the speed of the car through the photogates in the lab this week?

d/t

How many data points (times in seconds) did we collect in table 1 of the lab this week?

15

What were the units of measure in the lab this week?

cm/s

How does the speed of the car over the whole ramp compare to its average speed?

Slower then faster

March 21

Spring equinox

September 22

Autumnal equinox

December 22

Winter solstice

Where didd the marble have the most potential energy in the roller coaster lab?

At the top of the hill

Where did the marble have the most kinetic energy in the roller coaster lab?

At the bottom of the hill

Where did the energy come from in the roller coaster lab?

Gravity

The energy of the object has due to its position or its stored energy

Potential

Energy of an object or a particle due to its motion

Kinetic

Energy of an object due to the high position compared to a low one

Gravitational

Energy stored in an object when its compressed or stretched, like a spring or rubber band

Elastic

Energy can be ___________ or changed from one type to another.

Transferred

Energy of the current in a wire.

Electrical

The sum of energy associated with the motion and position of an object

Mechanical