Is speed a scalar or vector quantity?

The SI unit for speed is?

What is the formula for speed?

Velocity is a vector measurement because it has both a magnitude and a ________.

How long does it take a train to travel 100 km if it is traveling at 5 km/m?

A curved line on a distance vs. time graph indicates ____________?

In SI units, velocity has units of m/s and time has units of s, so the SI unit of acceleration is ____.

A roller coaster cart quickly picks up speed as it goes down a slope. As it travels, its speed is 5 m/s. But 2 seconds later, at the bottom of the slope, its speed is 24 m/s. What is its acceleration?

The turtle surfed 300 meters off shore. He caught a wave and surfed 150 meters in 13.6 seconds. How fast was the wave taking the turtle?

A car travels 45 km in 2 hours, what is the speed of the car?

Acceleration is the measure of change in?

How long does it take a car to switch its velocity from 10 m/s to 25 m/s if the acceleration is 5 m/s²?

A tornado going at 20 mph northeast is describing __________.

A disc is launched out of a disc launcher at a Frisbee course. It starts at a speed of 18 m/s before hitting the ground and stopping. How long would it take to land if it decelerates at -4 m/s²?

A semi-truck travels on a highway going 60 m/s West, how long would it take to go 1080 m/s West?

How long would it take for a car to go 82 miles with a speed of 18 mi/h? ( round to the nearest tenth)

If Billy Bob Jr had constant acceleration of 4 m/s, starting from rest, how fast is it traveling after 5 second?

A football player throws a ball 7.5 meters. How much time is needed for the ball to travel this distance if its velocity is 23 meters per second, north?

If Khloe's sister drives 5.25 miles west to get her nails done. What is the average velocity of her car if she arrives at the nail salon in 18 minutes?

A train is traveling at 81.7 kilometers per hour east. How far does the bus travel in 1.7 hours?

While on the road, Mr. Kelley is driving his Corvette Stingray and his he speeds up from 16 m/s  to 30 m/s in 28 seconds, what is his acceleration?

The SI symbol for force is?

Force is measured in ___________.

_______ is a push or a pull on an object.

When two or more

forces act on an object at the same time, the forces combine. This

is called ______________.

Forces on an object that are

equal in size and opposite in direction are called ______________.

___________ is the force that opposes the sliding motion of two

surfaces that are touching each other.

What two things can cause the gravitational force between

objects to increase?

T/F. Weight and mass are the same.

Which of Newton’s laws states that an object moving at a

constant velocity keeps moving at that velocity unless an

unbalanced net force acts on it.

_________ is the tendency of an object to resist any change in its

motion.

The inertia of an object is related to its ________.

T/F. Mass stays the same on Earth and the Moon.

Which of Newton’s laws of motion describes how the forces exerted on an

object, its mass, and its acceleration are related.

Newton’s ________ law of motion states that the net force acting

on an object causes the object to accelerate in the direction of the

net force.

According to Newton's 2nd law, what is the acceleration of an object with a mass of 10 kg and a net force of 30 N?

T/F. Acceleration occurs whenever an object is acted on by an unbalanced force.

Any change in the speed or direction of an object is called ___________.

If a net force of 24 N is applied to an object with a mass of 6 kg, then what will be the resulting acceleration be according to Newton's second law of motion?

Which equation correctly represents Newton's second law of motion?

A student pushes on a 5-kg box with a force of 20 N forward. The force of sliding friction is 10 N backward. What is the acceleration of the box?

_________ is the ability to cause change.

T/F. A system can be a single object and It can also

be a group of objects?

_________ energy is energy due to motion.

The kinetic energy from

an object’s motion depends on that object’s ________ and speed.

___________ energy is energy that is stored due to the interactions between objects.

T/F. Kinetic energy is calculated by the following equation. $$KE\ =\ \frac{1}{2}\ mv^2$$

___________ potential energy is energy that is stored by compressing or stretching an object.

______________ potential energy is energy that is due to the

gravitational forces between objects.

Recall that near Earth’s surface, g (gravity) is equal to ________.

T/F. The equation for (GPE) gravitational potential energy (J)

= mass (kg) × gravity (N/kg) × distance

What is the SI unit for energy?

Acceleration due to gravity is equal to? (Hint: acceleration has more than one quantifiable measure)

__________ is a force that opposes motion between objects that are touching.

T/F. The law of conservation of energy states that energy can be created and destroyed?

_________ is the rate at which energy is converted

Coasting down the hill transforms gravitational potential energy into __________ energy

Applying the brakes to a moving car transforms kinetic energy into _________ energy.

Friction transforms mechanical energy into __________ energy

Determine the amount of potential energy of a 5.0-N book that is moved to a shelf on a 3.0 m off the ground.

1 Joule is equal to?

T/F. The equation for Ep = (m)(g)(h)

What is the potential energy of a 10 N book that is placed on a shelf that is 2.5 m high?

You are on in-line skates at the top of a small hill. Your potential energy is equal to 1,000. J. The last time you checked, your mass was 60.0 kg.

What is your weight in newtons?

What is the kinetic energy of a 2,000.-kg boat moving at 5.0 m/s?

You are In-line skates at the top of a small hill. Your potential energy is equal to 1000 J. The last time we checked, your mass was 60 KG. What is the height of the hill?

What is the velocity of an 500-kg elevator that has 4000 J of energy?

What is the mass of an object traveling at 30. m/s if it has 33,750 J of energy?

T/F. The equation for Height (h) = $$\frac{E}{\left(m\right)\left(g\right)}$$

A 2.0-kilogram ball is tossed straight up with a kinetic energy of 196 joules. How high does it go?

If a 8.5 kg ball is thrown upwards 16 m, the what is the potential energy gained by the ball? (use g = 9.8 m/s²)

If a 74 kg person is lifted 24 m by an elevator in a building, then what is the gravitational potential energy gained by the person? (Use g = 9.81 m/s²)

How many laws of thermodynamics are there?

Which law concentrates on the conservation of energy?

Thermodynamics is the study of ________ and heat.

Which law of conservation of states that energy of a system may change forms, but is neither created or destroyed.

___________ is the randomness or disorder of a thermodynamic system.

The laws of thermodynamics describes the relationship between ________ and energy and how they relate to temperature and ________.

Which law (the most important one) states that heat naturally flows from a higher concentration to a lower concentration.

The _________ law states the entropy of a system approaches as constant value as the temperature approaches absolute zero.

What are the two (2) major types of waves?

Which wave travel through matter?

T/F. Electromagnetic waves require a medium to travel through?

A characteristic of and electromagnetic wave is that they share the same amplitude, but have different _____________.

Frequency is the measure of how much ___________ they carry.

Radio waves have the __________ wavelength but have the lowest frequencies.

Gamma rays have the ___________ wavelength and the most energy.

Electromagnetic waves travel at which speed?

How many types of electromagnetic (EM) waves are there?

Which waves are use to sterilize medical equipment?

Which waves are used to fight tumors found in human cancer?

On the visible light spectrum, which color has the lowest frequency?

EM waves are disturbances that transfer energy through a __________.

T/F. The two main sources of electromagnetic waves are stars and human technology.

The EM spectrum is a family of EM waves organized by their ___________.

In direct current (DC), the electric charge (current) only flows in ______ direction.

Electric charge in alternating current (AC), on the other hand, _______ direction periodically.

T/F. Most of the digital electronics that you build will use DC.

Electricity that flows into your home is what kind of current?