{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

1

Friction acts in a direction ___________ to the object's direction of motion.

Parallel

Opposite

Similar

Perpendicular

1

Friction changes the energy of an object from kinetic energy to _______ energy

Electric

Stored

Heat

None

1

What type of energy do all moving things have?

Mechanical

Nuclear

Thermal

Radiant

1

What kind of energy is stored energy?

potential energy

sound energy

heat energy

kinetic energy

1

When you stretch a rubber band you give it

kinetic energy

potential energy

electrical energy

chemical energy

1

Refer to the following to answer question(s) 2, 3
Directions: The diagram below shows three positions of a marble when shot from a slingshot at a target. Use the diagram to answer any questions that follow.
Just before being released at point 1, what is true of the marble?

A. Both its potential and kinetic energies are at the minimum.

B. Both its potential and kinetic energies are at the maximum.

C. Its potential energy is at the maximum, and its kinetic energy is at the minimum.

D. Its potential energy is at the minimum, and its kinetic energy is at the maximum.

1

What occurs when the marble is released?

A. The total energy of the marble increases because the potential energy increases.

B. The total energy of the marble increases because the kinetic energy increases.

C. The kinetic energy of the marble is transformed into potential energy.

D. The potential energy of the marble is transformed into kinetic energy.

1

Which skier has the greatest gravitational potential energy in their present positions and why?

1

At which point does the ball have the greatest amount of gravitational potential energy?

1

At which point does the pendulum weight have the greatest amount of kinetic energy?

1

At which point does the pendulum weight have the greatest amount of potential energy?

1

A football player ran across the level field at a constant speed. What happened to the energy?

KE and PE both stayed constant

KE increased, PE decreased

KE decreased, PE increased

KE and PE both decreased

1

After takeoff, a toy rocket went to a height of 25 m above the ground. What happened to the energy?

KE and PE both stayed constant

KE increased, PE decreased

KE decreased, PE increased

KE and PE both decreased

1

The passengers screamed as the roller coaster rolled down the firt drop from a nearly stationary position at the top. What happened to the energy?

KE and PE both stayed constant

KE increased, PE decreased

KE decreased, PE increased

KE and PE both decreased

1

What is the Law of Conservation of Energy?

1

What has more potential energy: a car on the ground or a leaf10 feet in the air? Why?

1

What is the correct equation for potential energy?

Mass x Gravity x Height

(Mass x Velocity2) / 2

Mass x Acceleration

Force x Distance

1

What is the correct equation for work?

Mass x Gravity x Height

(Mass x Velocity2) / 2

Mass x Acceleration

Force x Distance

1

What is the correct equation for kinetic energy?

Mass x Gravity x Height

(Mass x Velocity2) / 2

Mass x Acceleration

Force x Acceleration

1

What unit is energy measured in?

N

J

m/s

kg

1

A 6 kg rock is falling from a 200 m cliff. What is the rock’s gravitational potential energy at 200 meters high? Draw a diagram and show work.

1

A woman climbs 5.5 m high on a wall and gains 3600 J of potential energy. What is her mass?

1

An 80-kg man is walking at a speed of 4.0 m/s. What is his kinetic energy?

1

Energy Pre-test

Energy Pre-test

Friction acts in a direction ___________ to the object's direction of motion.

Friction changes the energy of an object from kinetic energy to _______ energy

What type of energy do all moving things have?

What kind of energy is stored energy?

When you stretch a rubber band you give it

Refer to the following to answer question(s) 2, 3Directions: The diagram below shows three positions of a marble when shot from a slingshot at a target. Use the diagram to answer any questions that follow. Just before being released at point 1, what is true of the marble?

What occurs when the marble is released?

Which skier has the greatest gravitational potential energy in their present positions and why?

At which point does the ball have the greatest amount of gravitational potential energy?

At which point does the pendulum weight have the greatest amount of kinetic energy?

At which point does the pendulum weight have the greatest amount of potential energy?

A football player ran across the level field at a constant speed. What happened to the energy?

After takeoff, a toy rocket went to a height of 25 m above the ground. What happened to the energy?

The passengers screamed as the roller coaster rolled down the firt drop from a nearly stationary position at the top. What happened to the energy?

What is the Law of Conservation of Energy?

What has more potential energy: a car on the ground or a leaf10 feet in the air? Why?

What is the correct equation for potential energy?

What is the correct equation for work?

What is the correct equation for kinetic energy?

What unit is energy measured in?

A 6 kg rock is falling from a 200 m cliff. What is the rock’s gravitational potential energy at 200 meters high? Draw a diagram and show work.

A woman climbs 5.5 m high on a wall and gains 3600 J of potential energy. What is her mass?

An 80-kg man is walking at a speed of 4.0 m/s. What is his kinetic energy?

A tiger runs at a speed of 10m/s with 22,000 J of kinetic energy. What is the tigers mass?

Friction acts in a direction ___________ to the object's direction of motion.

Friction changes the energy of an object from kinetic energy to _______ energy

What type of energy do all moving things have?

What kind of energy is stored energy?

When you stretch a rubber band you give it

Refer to the following to answer question(s) 2, 3Directions: The diagram below shows three positions of a marble when shot from a slingshot at a target. Use the diagram to answer any questions that follow. Just before being released at point 1, what is true of the marble?

What occurs when the marble is released?

Which skier has the greatest gravitational potential energy in their present positions and why?

At which point does the ball have the greatest amount of gravitational potential energy?

At which point does the pendulum weight have the greatest amount of kinetic energy?

At which point does the pendulum weight have the greatest amount of potential energy?

A football player ran across the level field at a constant speed. What happened to the energy?

After takeoff, a toy rocket went to a height of 25 m above the ground. What happened to the energy?

The passengers screamed as the roller coaster rolled down the firt drop from a nearly stationary position at the top. What happened to the energy?

What is the Law of Conservation of Energy?

What has more potential energy: a car on the ground or a leaf10 feet in the air? Why?

What is the correct equation for potential energy?

What is the correct equation for work?

What is the correct equation for kinetic energy?

What unit is energy measured in?

A 6 kg rock is falling from a 200 m cliff. What is the rock’s gravitational potential energy at 200 meters high? Draw a diagram and show work.

A woman climbs 5.5 m high on a wall and gains 3600 J of potential energy. What is her mass?

An 80-kg man is walking at a speed of 4.0 m/s. What is his kinetic energy?

A tiger runs at a speed of 10m/s with 22,000 J of kinetic energy. What is the tigers mass?

Refer to the following to answer question(s) 2, 3
Directions: The diagram below shows three positions of a marble when shot from a slingshot at a target. Use the diagram to answer any questions that follow.
Just before being released at point 1, what is true of the marble?

Refer to the following to answer question(s) 2, 3
Directions: The diagram below shows three positions of a marble when shot from a slingshot at a target. Use the diagram to answer any questions that follow.
Just before being released at point 1, what is true of the marble?