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## What converts sunlight to chemical energy in a plant cell?

Chloroplasts work to convert light energy of the Sun into sugars that can be used by cells. It is like a solar panel that changes sunlight energy into electric energy. The entire process is called photosynthesis and it all depends on the little green chlorophyll molecules in each chloroplast.

## How do plants convert light energy to chemical energy?

During the process of photosynthesis, light penetrates the cell and passes into the chloroplast. The light energy is intercepted by chlorophyll molecules on the granal stacks. Some of the light energy is converted to chemical energy. During this process, a phosphate is added to a molecule to cause the formation of ATP.

Photosynthesis

photosynthesis

## What are two main types of energy?

Many forms of energy exist, but they all fall into two basic categories:

• Potential energy.
• Kinetic energy.
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## What happens in terms of energy when a moving car?

What happens in terms of energy when a moving car hits a parked car, causing the parked car to move? The moving car transfers kinetic energy to the parked car. Kinetic energy in the moving car disappears. Kinetic energy in the parked car is created.

kinetic energy

## What happens to the energy when two cars collide?

Elastic collisions are collisions in which both momentum and kinetic energy are conserved. The total system kinetic energy before the collision equals the total system kinetic energy after the collision. In the collision between the two cars, total system momentum is conserved.

## What are 3 types of collisions?

Collisions are of three types:

• perfectly elastic collision.
• inelastic collision.
• perfectly inelastic collision.

## What happens when two equal forces collide?

Newton’s third law of motion is naturally applied to collisions between two objects. In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to speed up (gain momentum) and the other object to slow down (lose momentum).

## Is a head on collision the same as hitting a wall?

My friend says if you’re in a car traveling 60 mph and you collide head-on with a similar car traveling 60 mph, you feel the same impact as you would hitting a concrete wall at 120 mph. The effect on each one is roughly equivalent to a crash in which a car runs into a wall of such mass that it doesn’t budge.

## What is the most dangerous crash to avoid?

Head-On Crashes Head-on collisions are widely considered to be the most dangerous type of crash, as it involves two vehicles driving in opposite directions.

## Can you survive a 70 mph crash?

If either car in an accident is traveling faster than 43 mph, the chances of surviving a head-on crash plummet. One study shows that doubling the speed from 40 to 80 actually quadruples the force of impact. Even at 70 mph, your chances of surviving a head-on collision drop to 25 percent.

## At what speed is a head on collision fatal?

Increased Speed Leads to Fatal Car Accidents A fatal car accident is practically inevitable at speeds of 70 mph or more. Speeding makes it more difficult for the driver to maintain control of the vehicle. At faster speeds it becomes more challenging to maneuver around corners or avoid objects in the road.

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## Can you survive a 60 mph crash?

Can you survive a head on a crash at 60 mph? – Quora. Short answer: You can survive, but only if you let the vehicle’s safety features work for you and wear your seatbelt! Very Long Answer: Let’s talk Newtonian physics. Newton’s first law of motion holds that F=MA, which means force equals mass times acceleration.

## At what speed can you survive a car crash?

According to an overview of recent studies (Rósen et al., 2011): at a collision speed of 20 km/h nearly all pedestrians survive a crash with a passenger car; about 90% survive at a collision speed of 40 km/h, at a collision speed of 80 km/h the number of survivors is less than 50%, and at a collision speed of 100 km/h …

## What type of car crash has the most fatalities?

When looking at collisions between motor vehicles, angle collisions cause the greatest number of deaths (about 7,400 in 2018).

## What is the most dangerous car to drive?

The top 20 deadliest cars: the full list

Rank Make Total fatal crashes
1 Ford 10,845
2 Chevrolet 7,718
3 Honda 5,079
4 Toyota 4,734

## What is the biggest car crash in history?

The largest multi-car wreck in the United States occurred on November 3, 2002 approximately 25 miles south of Los Angeles, California on Interstate 10, and involved 216 vehicles, and caused 41 injuries. Thankfully, even though this was a massive accident, no deaths were reported.

## What is the 4 second rule?

The 4 second rule is the minimum distance you should travel behind the vehicle immediately in front in adverse weather conditions such as rain or fog. If this is the case then increase your distance from the vehicle in front.

## What is the 10 second rule in driving?

The rule of seconds advises that if you’re driving below 40 mph, you should maintain at least one second of distance for each 10 feet of vehicle length. Over 40 mph, add an extra second. For a truck driver cruising in a longer, heavier vehicle, more space and time is needed.

## What is the 3 to 6 second rule?

Simply leave 3 seconds worth of room between you and the vehicle you are following. Just watch the vehicle in front of you pass a road sign or other inanimate object on the side of the road and count out “One Massachusetts, Two Massachusetts, Three Massachusetts” before your vehicle passes that same object.

## What is a safe driving distance between cars?

How to Measure a Safe Following Distance. Many drivers follow the “three-second rule.” In other words, you should keep three seconds worth of space between your car and the car in front of you in order to maintain a safe following distance.

## What is 1 second for every 3 meters?

Remember, under ideal conditions, the safe following distance rule is 1 second for each 3 metres (10 feet) of vehicle length, so adjust your distance according to the existing conditions. A rapid light pumping of the brakes is a recommended way to stop on ice. By pumping the brakes, steering control can be maintained.

## What is the 5 second rule in driving?

If it takes you 3-5 seconds to pass an object after the car ahead of you has passed it, you’re at a safe following distance. You’ll need more space the faster you’re driving, so keep that in mind. If you follow any closer than 3 seconds, you’ll be tailgating the person in front of you, like a big jerk.

## Do you press the gas when turning?

You start pressing the gas pedal at the apex and slowly press it further. For regular old street driving, finish braking before you begin turning, and gently get on the power on the way out. For street, don’t brake in a turn.

## How do I get over my fear of driving alone?

6 Key Steps to Help You Get Over the Fear of Driving

1. Have Someone with You.
2. Take a Driver’s Training Course.
3. Stick to Daytime Driving at First.
4. Get Right Back on That Horse.
5. Learn To Love Highway Driving.
6. Listen To Music.

## How long does it take to stop at 80 mph?

Stopping Distances

Speed Thinking Distance 2 Braking Distance
50 mph 50 feet 125 feet
60 mph 60 feet 180 feet
70 mph 70 feet 245 feet
80 mph 80 feet 320 feet

2021-05-14