Choose the best answer for each question. A student pushes a cart with 20 N of force. Friction opposes it with 5 N. What is the net force?

Choose the best answer for each question. A balloon rubbed on a sweater attracts small pieces of paper. Which explains this?

Choose the best answer for each question. Gravity pulls a rock down a hill. Which type of force is this?

Choose the best answer for each question. A person opens a heavy door by pushing. This is an example of:

Choose the best answer for each question. A metal spoon is attracted to a fridge magnet. The force is:

Choose the best answer for each question. Two weights are dropped from the same height. Which force causes both to fall?

Choose the best answer for each question. In tug-of-war, two equal teams pull with the same force. The forces are:

Choose the best answer for each question. A leaf is lifted by the wind. Which force acts on it?

Choose the best answer for each question. Rubbing a balloon and sticking it to the wall produces what charge on the balloon?

Choose the best answer for each question. A car moves 100 m in 10 s. Its speed is:

Choose the best answer for each question. A skateboard slows on a rough surface. Which force is responsible?

Choose the best answer for each question. A sled slides faster on ice than on grass because:

Choose the best answer for each question. A box moves 3 m east then 4 m east. Total distance traveled is:

Choose the best answer for each question. A toy car rolls down a ramp and stops. Which force stops it?

Choose the best answer for each question. A ball thrown upward experiences:

Choose the best answer for each question. Two blocks slide: A on wood, B on ice. Which has less friction?

Choose the best answer for each question. A cyclist brakes quickly to avoid a dog. Which force allows the bike to stop?

A 5 kg box is pulled with 20 N; friction = 4 N. Net acceleration is:

A student's bridge collapses under 2 kg. Which improvement reduces failure?

A 1 kg book falls. Force of gravity (g = $$9.8 m/s^2$$ ) is:

A student jumps off a skateboard. According to Newton's 3rd law:

A balloon lifts a small paper “person” via static electricity. What keeps it in the air?

A bridge must hold 1 kg. Uneven weight could cause failure due to:

Using trusses in a bridge helps because: