How much electricity does it take to kill a human being? 0.1 amps 0.2 amps 0.5 volts 1.0 volts
How do dying stars contribute to the formation of planets? A. They emit helium gas that attaches to nearby planets. B. They remove low-mass elements from the planets crust. C. They cause nuclear fusion inside the inner core of planets. D. They produce heavy elements such as iron and gold.
__ is the measure of the quantity of matter. Mass Weight Density Volume
1. You can reduce the forces on you and your car during an unavoidable crash if you are able to redirect your path toward objects such as __ A. I trees, concrete enbankment, wall B. bushes, snow, soft dirt
What does the mass defect measure? A. The energy required to make a reaction happen B. The difference in mass between protons and neutrons C. The energy required to form a nucleus from its parts D. The mass of particles created in a nuclear reaction
The natural force that pulls vehicles towards the road is __ C gravity centripetal force friction
Not including thinking distance, lawful brakes must stop a car at 20 miles per hour within how many feet? 25 feet 10 feet 30 feet 20 feet
How is it possible to produce a magnetic field around a non -magnetic wire? How can the orientation of the lines of force in that magnetic field be determined? square
Calculate the energy of a red light photon with a frequency of 5.00times 10^14
Multiple Choice Question Which class is a lever with the effort between the fulcrum and the resistance? Third Second First
What is the relationship between velocity and acceleration? Acceleration is the change in velocity over time. Velocity is the change in acceleration over time. Velocity and acceleration are equal and opposite. Velocity and acceleration have nothing to do with each other.
19. The process by which atomic nuclei spontaneously decay is called relative dating radioactivity erosion deposition 20. The time it takes for 50 percent of the nuclei in a radioactive sample to decay to its stable isotope is called the daughter product geologic time the half-life the half-time 21. The scientist who developed the theory of evolution was Harry Hess James Hutton Charles Darwin William Smith
Radloactive nuclel undergo decay because they are unstable. a TRUE b FALSE
Which of the following would cause a change in the speed of a sound wave? a the wave being made by a larger vibration b the wave moving through water C the wave changing medium from a gas to a liquid d the wave being made by a smaller vibration e none of the above
A man pulls a vacuum forward 13.6 m with a force of 33.9 N at a $55.0^{\circ }$ angle. How much work is being done to the vacuum by the man? $W=[?]J$
Select the cause of evaporation. Waves from the ocean Energy in the clouds Heat from the Sun Rain on the ground
True/False: The mass of the object affects the rate at which it falls. True False
If more force pushes two surfaces together, then the friction between the surfaces will __ stay the same increase decrease
Which of the following is the ideal way to apply pressure onto pedals? Gently at first and then with full force Stomping with force, so it reacts With your entire body weight behind it By pressing gradually
Select all of the types of electromagnetic waves that are ionizing radiation. gamma infrared microwave ultraviolet X-ray
