WebThe speed of an athlete who runs 200 metres in 20 seconds is ....... 0.1 m/s 10 m/s 10 km/s 4,000 m/s 2. An athlete runs 1 km in 100 seconds. Her speed in m/s is ....... 0.001 m/s 1 m/s 10 m/s 100 m/s 3. It takes an hour to walk 1,800 metres up a steep hill. The speed in m/s is ....... 0.5 m/s 1 m/s 1.8 m/s 2 m/s 4. WebMeasuring Speed Speed is the distance travelled by an object every second The simplest way to measure the speed of an object, is to time how long it takes to travel a known distance and use the equation: Choosing Equipment To ensure a result for speed is as accurate as possible, choose the appropriate equipment to measure the distance and time
Speed - Knowledge and understanding - Physical factors - National 5
WebCalculate the depth of water if the speed of sound in water is 1,480 m/s. Answer. Distance = speed × time. Speed = 1,480 m/s. Time for ultrasound to travel to seabed and back again = 0.1 s. Time for ultrasound to travel to seabed = 0.1 s ÷ 2 = 0.05 s. Distance to seabed = 1,480 × 0.05 = 74 m. The depth of water is 74 m. WebThe clock speed is measured in cycles per second, and one cycle per second is known as 1 hertz. This means that a CPU with a clock speed of 2 gigahertz (GHz) can carry out two thousand million... romford county technical school
Motion and speed - Forces and movement - KS3 Physics
WebJun 5, 2024 · How does height affect the speed of an object? – BBC Bitesize GCSE Physics BBC Northern Ireland 45.3K subscribers Subscribe 2.9K views 2 years ago Our contestants will have to … WebVelocity (v) is a vector quantity that measures displacement (or change in position, Δs) over the change in time (Δt), represented by the equation v = Δs/Δt. Speed (or rate, r) is a scalar quantity that measures the distance traveled (d) over the change in time (Δt), represented by the equation r = d/Δt. Created by Sal Khan. Sort by: Top Voted WebQuestions - speed - Amplitude, wavelength and frequency - CCEA - GCSE Physics (Single Science) Revision - CCEA - BBC Bitesize GCSE CCEA Amplitude, wavelength and … romford county