home
Menu
Create
Random
0
0
0
thumbnail

H Physics Multiple Choice 1

You May use a calculator. Also you may need to do working.
Quiz by F1Guy07
Rate:
Last updated: April 8, 2024
You have not attempted this quiz yet.
More quiz info >>
First submittedApril 8, 2024
Times taken9
Average score40.0%
Report this quizReport
Quiz and answer stats >>
Friends stats >>
25:00
The quiz is paused. You have remaining.
Scoring
You scored / = %
This beats or equals % of test takers also scored 100%
The average score is
Your high score is
Your fastest time is
Keep scrolling down for answers and more stats ...
1. A battery is used to power the electric motor in a toy car. The battery has a measured potential difference of 1.45V when the motor is not on. There is a potential difference of 1.38V when the motor operates drawing a current of 0.35A .Calculate the 'lost volts'.
1.45V ✓
0.07V ✓
1.38V ✓
2.83V ✓
2. A battery has an EMF of 4.50 Volts and internal resistance of 0.24 Ohms .Calculate the expected short circuit current.
18.8A ✓
0A ✓
2.4A ✓
45A ✓
3. Which of the following expressions gives the energy stored in a capacitor?
E =QV ✓
E = 1/2 QV ✓
E = 1/2 CV ✓
none of the above ✓
4. Which of the following statements applies to a 10uF capacitor?
10uC charges to 1V ✓
1uC charges to 10V ✓
1C charges to 10uV ✓
none of the above ✓
5. A heater element has resistance of 26 Ohms . It is connected to the mains which has an r.m.s. voltage of 230 Volts . Calculate the r.m.s. current in the heater.
12.5A ✓
8.85A ✓
0.113A ✓
none of the above ✓
6. What is the magnitude of the acceleration of a moving object equal to?
The gradient of a velocity-time graph ✓
The area under a velocity-time graph ✓
The gradient of a displacement-time graph ✓
none of the above ✓
7. A motorbike undergoes a constant acceleration from rest and travels a distance of 60 m in 6.0 s. What is the acceleration of the motorbike?
1.67ms^-2 ✓
3.3ms^-2 ✓
20ms^-2 ✓
none of the above ✓
8. An arrow is fired with a velocity of 27ms^-1 at 25 degrees above the horizontal. It lands on level ground. Calculate the vertical component of the initial velocity.
11.4ms^-1 ✓
24.5ms^-1 ✓
27ms^-1 ✓
none of the above ✓
9. A car of mass 1100kg accelerates uniformly from rest to 20ms^-1 over a distance of 133m .What is the resultant force on the car during the acceleration?
10800N ✓
1650N ✓
22000N ✓
none of the above ✓
10. An arrow is fired with a velocity of 27ms^-1 at 25 degrees above the horizontal. It lands on level ground. Calculate the horizontal component of the initial velocity.
11.4ms^-1 ✓
24.5ms^-1 ✓
27ms^-1 ✓
none of the above ✓
11. By how many orders of magnitude is a whale (length approx. 20 m) larger than a fly (length 2 cm)?
1 ✓
2 ✓
3 ✓
4 ✓
12. What is the name of the group of particles which make up all matter?
Protons ✓
Fermions ✓
Bosons ✓
none of the above ✓
13. How many quarks are needed to make up a proton or neutron?
1 ✓
2 ✓
3 ✓
4 ✓
14. What are the four fundamental forces of nature?
strong, weak, medium, gravity ✓
electric, strong, zero, gluon ✓
strong, weak, gravity, electromagnetic ✓
none of the above ✓
15. What is a positron?
antimatter particle of an electron ✓
anti-neutrino ✓
antimatter particle of proton ✓
none of the above ✓
Comments
No comments yet
Save Your Progress

Copyright H Brothers Inc, 2008–2024

Contact Us | Go To Top | View Mobile Site